Common Weakness Enumeration
CWE-193
AllowedOff-by-one Error
Abstraction: Base · Status: Draft
A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.
279 vulnerabilities reference this CWE, most recent first.
GHSA-HM4X-R5HC-794F
Vulnerability from github – Published: 2025-08-25 15:53 – Updated: 2025-11-03 21:34
VLAI
Summary
ImageMagick has a Heap Buffer Overflow in InterpretImageFilename
Details
Heap Buffer Overflow in InterpretImageFilename
Summary
A heap buffer overflow was identified in the InterpretImageFilename function of ImageMagick. The issue stems from an off-by-one error that causes out-of-bounds memory access when processing format strings containing consecutive percent signs (%%).
Environment
- OS: Arch Linux (Linux gmkhost 6.14.2-arch1-1 # 1 SMP PREEMPT_DYNAMIC Thu, 10 Apr 2025 18:43:59 +0000 x86_64 GNU/Linux (GNU libc) 2.41)
- Architecture: x86_64
- Compiler: gcc (GCC) 15.1.1 20250425
Reproduction
Build Instructions
# Clone the repository
git clone https://github.com/ImageMagick/ImageMagick.git
cd ImageMagick
git reset --hard 8fff9b4f44d2e8b5cae2bd6db70930a144d15f12
# Build with AddressSanitizer
export CFLAGS="-fsanitize=address -g -O1"
export CXXFLAGS="-fsanitize=address -g -O1"
export LDFLAGS="-fsanitizer=address"
./configure
make
# Set library path and trigger the crash
export LD_LIBRARY_PATH="$(pwd)/MagickWand/.libs:$(pwd)/MagickCore/.libs:$LD_LIBRARY_PATH"
./utilities/.libs/magick %% a
Minimum Trigger
./utilities/.libs/magick %% [any_output_filename]
Crash Analysis
AddressSanitizer Output
$ ./utilities/.libs/magick %% a
=================================================================
==2227694==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x7037f99e3ad3 at pc 0x741801e81a17 bp 0x7ffd22fa4e00 sp 0x7ffd22fa45b8
READ of size 1 at 0x7037f99e3ad3 thread T0
#0 0x741801e81a16 in strchr /usr/src/debug/gcc/gcc/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:746
#1 0x7418013b4f06 in InterpretImageFilename MagickCore/image.c:1674
#2 0x7418012826a3 in ReadImages MagickCore/constitute.c:1040
#3 0x741800e4696b in CLINoImageOperator MagickWand/operation.c:4959
#4 0x741800e64de7 in CLIOption MagickWand/operation.c:5473
#5 0x741800d92edf in ProcessCommandOptions MagickWand/magick-cli.c:653
#6 0x741800d94816 in MagickImageCommand MagickWand/magick-cli.c:1392
#7 0x741800d913e4 in MagickCommandGenesis MagickWand/magick-cli.c:177
#8 0x5ef7a3546638 in MagickMain utilities/magick.c:162
#9 0x5ef7a3546872 in main utilities/magick.c:193
#10 0x7417ff53f6b4 (/usr/lib/libc.so.6+0x276b4) (BuildId: 468e3585c794491a48ea75fceb9e4d6b1464fc35)
#11 0x7417ff53f768 in __libc_start_main (/usr/lib/libc.so.6+0x27768) (BuildId: 468e3585c794491a48ea75fceb9e4d6b1464fc35)
#12 0x5ef7a3546204 in _start (/home/kforfk/workspace/fuzz_analysis/saigen/ImageMagick/utilities/.libs/magick+0x2204) (BuildId: 96677b60628cf297eaedb3eb17b87000d29403f2)
0x7037f99e3ad3 is located 0 bytes after 3-byte region [0x7037f99e3ad0,0x7037f99e3ad3)
allocated by thread T0 here:
#0 0x741801f20e15 in malloc /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_malloc_linux.cpp:67
#1 0x7418013e86bc in AcquireMagickMemory MagickCore/memory.c:559
SUMMARY: AddressSanitizer: heap-buffer-overflow MagickCore/image.c:1674 in InterpretImageFilename
Shadow bytes around the buggy address:
0x7037f99e3800: fa fa 07 fa fa fa 00 fa fa fa fd fa fa fa fd fa
0x7037f99e3880: fa fa 07 fa fa fa 00 fa fa fa fd fa fa fa fd fa
0x7037f99e3900: fa fa 07 fa fa fa 00 fa fa fa fd fa fa fa fd fa
0x7037f99e3980: fa fa 07 fa fa fa 00 fa fa fa fd fa fa fa fd fa
0x7037f99e3a00: fa fa 07 fa fa fa fd fa fa fa fd fa fa fa 00 04
=>0x7037f99e3a80: fa fa 00 04 fa fa 00 00 fa fa[03]fa fa fa 03 fa
0x7037f99e3b00: fa fa 00 01 fa fa fa fa fa fa fa fa fa fa fa fa
0x7037f99e3b80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x7037f99e3c00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x7037f99e3c80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x7037f99e3d00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==2227694==ABORTING
Root Cause Analysis
The first command line argument is interpreted as MagickImageCommand:
https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/utilities/magick.c#L83
const CommandInfo
MagickCommands[] =
{
MagickCommandSize("magick", MagickFalse, MagickImageCommand),
It is invoked here: https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickWand/magick-cli.c#L220
status=command(image_info,argc,argv,&text,exception);
The execution then follows this path: - https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickWand/magick-cli.c#L1387 - https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickWand/magick-cli.c#L586 - https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickWand/magick-cli.c#L419 - https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickWand/operation.c#L5391 - https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickWand/operation.c#L5473 - https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickWand/operation.c#L4959 - https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickCore/constitute.c#L1009 - https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickCore/constitute.c#L1039 - https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickCore/image.c#L1649 - https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickCore/image.c#L1674
The execution eventually reaches InterpretImageFilename and enters a loop. The format variable here is "%%". At this point, it is safe to access *(format + 2) but not safe to access *(format + 3).
for (p=strchr(format,'%'); p != (char *) NULL; p=strchr(p+1,'%'))
{
q=(char *) p+1;
if (*q == '%')
{
p=q+1;
continue;
}
The first strchr call returns a pointer equal to format and assigns it to p. Then q is initialized with p + 1 (format + 1), and *q is '%', so the code enters the if branch. Here, p is reassigned to q + 1 (format + 2).
In the next iteration, p + 1 (format + 3) is passed to strchr, and when strchr accesses it, this causes an out-of-bounds read.
Severity
{
"affected": [
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-OpenMP-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-OpenMP-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-OpenMP-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-OpenMP-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-OpenMP-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-OpenMP-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.7.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-53014"
],
"database_specific": {
"cwe_ids": [
"CWE-125",
"CWE-193"
],
"github_reviewed": true,
"github_reviewed_at": "2025-08-25T15:53:34Z",
"nvd_published_at": "2025-07-14T18:15:23Z",
"severity": "LOW"
},
"details": "# Heap Buffer Overflow in InterpretImageFilename\n\n## Summary\nA heap buffer overflow was identified in the `InterpretImageFilename` function of ImageMagick. The issue stems from an off-by-one error that causes out-of-bounds memory access when processing format strings containing consecutive percent signs (`%%`).\n\n## Environment\n- **OS**: Arch Linux (Linux gmkhost 6.14.2-arch1-1 # 1 SMP PREEMPT_DYNAMIC Thu, 10 Apr 2025 18:43:59 +0000 x86_64 GNU/Linux (GNU libc) 2.41)\n- **Architecture**: x86_64\n- **Compiler**: gcc (GCC) 15.1.1 20250425\n\n## Reproduction\n\n### Build Instructions\n```bash\n# Clone the repository\ngit clone https://github.com/ImageMagick/ImageMagick.git\ncd ImageMagick\ngit reset --hard 8fff9b4f44d2e8b5cae2bd6db70930a144d15f12\n\n# Build with AddressSanitizer\nexport CFLAGS=\"-fsanitize=address -g -O1\"\nexport CXXFLAGS=\"-fsanitize=address -g -O1\"\nexport LDFLAGS=\"-fsanitizer=address\"\n./configure\nmake\n\n# Set library path and trigger the crash\nexport LD_LIBRARY_PATH=\"$(pwd)/MagickWand/.libs:$(pwd)/MagickCore/.libs:$LD_LIBRARY_PATH\"\n./utilities/.libs/magick %% a\n```\n\n### Minimum Trigger\n```bash\n./utilities/.libs/magick %% [any_output_filename]\n```\n\n## Crash Analysis\n\n### AddressSanitizer Output\n```\n$ ./utilities/.libs/magick %% a\n=================================================================\n==2227694==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x7037f99e3ad3 at pc 0x741801e81a17 bp 0x7ffd22fa4e00 sp 0x7ffd22fa45b8\nREAD of size 1 at 0x7037f99e3ad3 thread T0\n #0 0x741801e81a16 in strchr /usr/src/debug/gcc/gcc/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:746\n #1 0x7418013b4f06 in InterpretImageFilename MagickCore/image.c:1674\n #2 0x7418012826a3 in ReadImages MagickCore/constitute.c:1040\n #3 0x741800e4696b in CLINoImageOperator MagickWand/operation.c:4959\n #4 0x741800e64de7 in CLIOption MagickWand/operation.c:5473\n #5 0x741800d92edf in ProcessCommandOptions MagickWand/magick-cli.c:653\n #6 0x741800d94816 in MagickImageCommand MagickWand/magick-cli.c:1392\n #7 0x741800d913e4 in MagickCommandGenesis MagickWand/magick-cli.c:177\n #8 0x5ef7a3546638 in MagickMain utilities/magick.c:162\n #9 0x5ef7a3546872 in main utilities/magick.c:193\n #10 0x7417ff53f6b4 (/usr/lib/libc.so.6+0x276b4) (BuildId: 468e3585c794491a48ea75fceb9e4d6b1464fc35)\n #11 0x7417ff53f768 in __libc_start_main (/usr/lib/libc.so.6+0x27768) (BuildId: 468e3585c794491a48ea75fceb9e4d6b1464fc35)\n #12 0x5ef7a3546204 in _start (/home/kforfk/workspace/fuzz_analysis/saigen/ImageMagick/utilities/.libs/magick+0x2204) (BuildId: 96677b60628cf297eaedb3eb17b87000d29403f2)\n\n0x7037f99e3ad3 is located 0 bytes after 3-byte region [0x7037f99e3ad0,0x7037f99e3ad3)\nallocated by thread T0 here:\n #0 0x741801f20e15 in malloc /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_malloc_linux.cpp:67\n #1 0x7418013e86bc in AcquireMagickMemory MagickCore/memory.c:559\n\nSUMMARY: AddressSanitizer: heap-buffer-overflow MagickCore/image.c:1674 in InterpretImageFilename\nShadow bytes around the buggy address:\n 0x7037f99e3800: fa fa 07 fa fa fa 00 fa fa fa fd fa fa fa fd fa\n 0x7037f99e3880: fa fa 07 fa fa fa 00 fa fa fa fd fa fa fa fd fa\n 0x7037f99e3900: fa fa 07 fa fa fa 00 fa fa fa fd fa fa fa fd fa\n 0x7037f99e3980: fa fa 07 fa fa fa 00 fa fa fa fd fa fa fa fd fa\n 0x7037f99e3a00: fa fa 07 fa fa fa fd fa fa fa fd fa fa fa 00 04\n=\u003e0x7037f99e3a80: fa fa 00 04 fa fa 00 00 fa fa[03]fa fa fa 03 fa\n 0x7037f99e3b00: fa fa 00 01 fa fa fa fa fa fa fa fa fa fa fa fa\n 0x7037f99e3b80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\n 0x7037f99e3c00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\n 0x7037f99e3c80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\n 0x7037f99e3d00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\nShadow byte legend (one shadow byte represents 8 application bytes):\n Addressable: 00\n Partially addressable: 01 02 03 04 05 06 07 \n Heap left redzone: fa\n Freed heap region: fd\n Stack left redzone: f1\n Stack mid redzone: f2\n Stack right redzone: f3\n Stack after return: f5\n Stack use after scope: f8\n Global redzone: f9\n Global init order: f6\n Poisoned by user: f7\n Container overflow: fc\n Array cookie: ac\n Intra object redzone: bb\n ASan internal: fe\n Left alloca redzone: ca\n Right alloca redzone: cb\n==2227694==ABORTING\n```\n\n## Root Cause Analysis\nThe first command line argument is interpreted as `MagickImageCommand`:\nhttps://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/utilities/magick.c#L83\n```c\nconst CommandInfo\n MagickCommands[] =\n {\n MagickCommandSize(\"magick\", MagickFalse, MagickImageCommand),\n```\n\nIt is invoked here:\nhttps://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickWand/magick-cli.c#L220\n```c\nstatus=command(image_info,argc,argv,\u0026text,exception);\n```\n\nThe execution then follows this path:\n- https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickWand/magick-cli.c#L1387\n- https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickWand/magick-cli.c#L586\n- https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickWand/magick-cli.c#L419\n- https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickWand/operation.c#L5391\n- https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickWand/operation.c#L5473\n- https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickWand/operation.c#L4959\n- https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickCore/constitute.c#L1009\n- https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickCore/constitute.c#L1039\n- https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickCore/image.c#L1649\n- https://github.com/ImageMagick/ImageMagick/blob/8fff9b4f44d2e8b5cae2bd6db70930a144d15f12/MagickCore/image.c#L1674\n\nThe execution eventually reaches `InterpretImageFilename` and enters a loop. The `format` variable here is `\"%%\"`. At this point, it is safe to access `*(format + 2)` but not safe to access `*(format + 3)`.\n\n```c\nfor (p=strchr(format,\u0027%\u0027); p != (char *) NULL; p=strchr(p+1,\u0027%\u0027))\n{\n q=(char *) p+1;\n if (*q == \u0027%\u0027)\n {\n p=q+1;\n continue;\n }\n```\n\nThe first `strchr` call returns a pointer equal to `format` and assigns it to `p`. Then `q` is initialized with `p + 1` (`format + 1`), and `*q` is `\u0027%\u0027`, so the code enters the if branch. Here, `p` is reassigned to `q + 1` (`format + 2`).\n\nIn the next iteration, `p + 1` (`format + 3`) is passed to `strchr`, and when `strchr` accesses it, this causes an out-of-bounds read.",
"id": "GHSA-hm4x-r5hc-794f",
"modified": "2025-11-03T21:34:06Z",
"published": "2025-08-25T15:53:34Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-hm4x-r5hc-794f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53014"
},
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/commit/29d82726c7ec20c07c49ba263bdcea16c2618e03"
},
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick6/commit/79b6ed03770781d996d1710b89fbb887e5ea758a"
},
{
"type": "PACKAGE",
"url": "https://github.com/ImageMagick/ImageMagick"
},
{
"type": "WEB",
"url": "https://github.com/dlemstra/Magick.NET/releases/tag/14.7.0"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/09/msg00012.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "ImageMagick has a Heap Buffer Overflow in InterpretImageFilename"
}
GHSA-HPW2-J46J-HPV2
Vulnerability from github – Published: 2022-05-13 01:36 – Updated: 2022-05-13 01:36
VLAI
Details
A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files before 4.9.10. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2017-2618"
],
"database_specific": {
"cwe_ids": [
"CWE-193",
"CWE-682"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-07-27T19:29:00Z",
"severity": "MODERATE"
},
"details": "A flaw was found in the Linux kernel\u0027s handling of clearing SELinux attributes on /proc/pid/attr files before 4.9.10. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory.",
"id": "GHSA-hpw2-j46j-hpv2",
"modified": "2022-05-13T01:36:53Z",
"published": "2022-05-13T01:36:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-2618"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:0931"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:0932"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:0933"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2017-2618"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1419916"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2618"
},
{
"type": "WEB",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0c461cb727d146c9ef2d3e86214f498b78b7d125"
},
{
"type": "WEB",
"url": "https://marc.info/?l=selinux\u0026m=148588165923772\u0026w=2"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2017/dsa-3791"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/96272"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-HQC8-J86X-2764
Vulnerability from github – Published: 2021-08-25 20:48 – Updated: 2021-08-19 21:06
VLAI
Summary
Off-by-one error in simple-slab
Details
An issue was discovered in the simple-slab crate before 0.3.3 for Rust. remove() has an off-by-one error, causing memory leakage and a drop of uninitialized memory.
Severity
7.5 (High)
{
"affected": [
{
"package": {
"ecosystem": "crates.io",
"name": "simple-slab"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.3.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-35893"
],
"database_specific": {
"cwe_ids": [
"CWE-193"
],
"github_reviewed": true,
"github_reviewed_at": "2021-08-19T21:06:47Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "An issue was discovered in the simple-slab crate before 0.3.3 for Rust. remove() has an off-by-one error, causing memory leakage and a drop of uninitialized memory.",
"id": "GHSA-hqc8-j86x-2764",
"modified": "2021-08-19T21:06:47Z",
"published": "2021-08-25T20:48:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35893"
},
{
"type": "WEB",
"url": "https://github.com/nathansizemore/simple-slab/issues/2"
},
{
"type": "WEB",
"url": "https://github.com/nathansizemore/simple-slab/commit/5e0524c1db836e2192e1cd818848d96937c0b587"
},
{
"type": "PACKAGE",
"url": "https://github.com/nathansizemore/simple-slab"
},
{
"type": "WEB",
"url": "https://rustsec.org/advisories/RUSTSEC-2020-0039.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Off-by-one error in simple-slab"
}
GHSA-HWF3-R46V-5GGX
Vulnerability from github – Published: 2026-07-24 14:29 – Updated: 2026-07-24 14:29
VLAI
Summary
ImageMagick: Information Disclosure when printing profiles with debug enabled
Details
When a profile is displayed with the identify command and the value is not printable a single byte at the end of the profile can be printed.
Severity
{
"affected": [
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-OpenMP-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-OpenMP-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-OpenMP-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-OpenMP-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-OpenMP-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.15.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-125",
"CWE-193"
],
"github_reviewed": true,
"github_reviewed_at": "2026-07-24T14:29:42Z",
"nvd_published_at": null,
"severity": "LOW"
},
"details": "When a profile is displayed with the identify command and the value is not printable a single byte at the end of the profile can be printed.",
"id": "GHSA-hwf3-r46v-5ggx",
"modified": "2026-07-24T14:29:43Z",
"published": "2026-07-24T14:29:42Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-hwf3-r46v-5ggx"
},
{
"type": "PACKAGE",
"url": "https://github.com/ImageMagick/ImageMagick"
},
{
"type": "WEB",
"url": "https://github.com/dlemstra/Magick.NET/releases/tag/14.15.0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "ImageMagick: Information Disclosure when printing profiles with debug enabled"
}
GHSA-HXHJ-7442-HJRX
Vulnerability from github – Published: 2022-05-13 01:23 – Updated: 2022-05-13 01:23
VLAI
Details
Off-by-one error in the pci_read function in the ACPI PCI hotplug interface (hw/acpi/pcihp.c) in QEMU allows local guest users to obtain sensitive information and have other unspecified impact related to a crafted PCI device that triggers memory corruption.
{
"affected": [],
"aliases": [
"CVE-2014-5388"
],
"database_specific": {
"cwe_ids": [
"CWE-193"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-11-15T21:59:00Z",
"severity": "MODERATE"
},
"details": "Off-by-one error in the pci_read function in the ACPI PCI hotplug interface (hw/acpi/pcihp.c) in QEMU allows local guest users to obtain sensitive information and have other unspecified impact related to a crafted PCI device that triggers memory corruption.",
"id": "GHSA-hxhj-7442-hjrx",
"modified": "2022-05-13T01:23:54Z",
"published": "2022-05-13T01:23:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-5388"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1132956"
},
{
"type": "WEB",
"url": "https://lists.gnu.org/archive/html/qemu-devel/2014-08/msg03338.html"
},
{
"type": "WEB",
"url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=fa365d7cd11185237471823a5a33d36765454e16"
},
{
"type": "WEB",
"url": "http://git.qemu.org/?p=qemu.git;a=commit;h=fa365d7cd11185237471823a5a33d36765454e16"
},
{
"type": "WEB",
"url": "http://seclists.org/oss-sec/2014/q3/438"
},
{
"type": "WEB",
"url": "http://seclists.org/oss-sec/2014/q3/440"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2409-1"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-J764-4V6H-PQP7
Vulnerability from github – Published: 2024-06-16 15:30 – Updated: 2025-11-04 00:30
VLAI
Details
Netatalk 3.2.0 has an off-by-one error and resultant heap-based buffer overflow because of setting ibuf[len] to '\0' in FPMapName in afp_mapname in etc/afp/directory.c.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2024-38441"
],
"database_specific": {
"cwe_ids": [
"CWE-120",
"CWE-193"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-16T13:15:53Z",
"severity": "CRITICAL"
},
"details": "Netatalk 3.2.0 has an off-by-one error and resultant heap-based buffer overflow because of setting ibuf[len] to \u0027\\0\u0027 in FPMapName in afp_mapname in etc/afp/directory.c.",
"id": "GHSA-j764-4v6h-pqp7",
"modified": "2025-11-04T00:30:49Z",
"published": "2024-06-16T15:30:44Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/Netatalk/netatalk/security/advisories/GHSA-mj6v-cr68-mj9q"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38441"
},
{
"type": "WEB",
"url": "https://github.com/Netatalk/netatalk/issues/1098"
},
{
"type": "WEB",
"url": "https://github.com/Netatalk/netatalk/blob/90d91a9ac9a7d6132ab7620d31c8c23400949206/etc/afpd/directory.c#L2333"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00026.html"
},
{
"type": "WEB",
"url": "https://netatalk.io/security/CVE-2024-38441"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-J779-PCC6-8C5F
Vulnerability from github – Published: 2026-06-15 18:31 – Updated: 2026-07-28 15:32
VLAI
Details
LibreOffice Calc compiles cell formulas when opening a spreadsheet. A heap buffer overflow existed when compiling a very long formula made up of many opening tokens. The array that tracks nesting depth was allocated one element too small for that worst case, so such a formula wrote one element past its end. In fixed versions the array is sized to hold the largest possible nesting.
Severity
{
"affected": [],
"aliases": [
"CVE-2026-8357"
],
"database_specific": {
"cwe_ids": [
"CWE-131",
"CWE-193"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-15T18:16:37Z",
"severity": "MODERATE"
},
"details": "LibreOffice Calc compiles cell formulas when opening a spreadsheet. A heap buffer overflow existed when compiling a very long formula made up of many opening tokens. The array that tracks nesting depth was allocated one element too small for that worst case, so such a formula wrote one element past its end. In fixed versions the array is sized to hold the largest possible nesting.",
"id": "GHSA-j779-pcc6-8c5f",
"modified": "2026-07-28T15:32:04Z",
"published": "2026-06-15T18:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8357"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:35839"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36832"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:43423"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:43424"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:43425"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:43460"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:43461"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:46386"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:46387"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-8357"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2488964"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8357.json"
},
{
"type": "WEB",
"url": "https://www.libreoffice.org/about-us/security/advisories/cve-2026-8357"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-J8R4-W4XH-MCV3
Vulnerability from github – Published: 2022-04-30 00:02 – Updated: 2022-04-30 00:02
VLAI
Details
Spice, versions 0.5.2 through 0.14.1, are vulnerable to an out-of-bounds read due to an off-by-one error in memslot_get_virt. This may lead to a denial of service, or, in the worst case, code-execution by unauthenticated attackers.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2019-3813"
],
"database_specific": {
"cwe_ids": [
"CWE-193"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-02-04T18:29:00Z",
"severity": "HIGH"
},
"details": "Spice, versions 0.5.2 through 0.14.1, are vulnerable to an out-of-bounds read due to an off-by-one error in memslot_get_virt. This may lead to a denial of service, or, in the worst case, code-execution by unauthenticated attackers.",
"id": "GHSA-j8r4-w4xh-mcv3",
"modified": "2022-04-30T00:02:15Z",
"published": "2022-04-30T00:02:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-3813"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:0231"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:0232"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:0457"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1665371"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2019/01/msg00026.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202007-30"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3870-1"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2019/dsa-4375"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/106801"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-JCG4-G8QF-7XGH
Vulnerability from github – Published: 2022-05-02 00:01 – Updated: 2022-05-02 00:01
VLAI
Details
Off-by-one error in the iov_iter_advance function in mm/filemap.c in the Linux kernel before 2.6.27-rc2 allows local users to cause a denial of service (system crash) via a certain sequence of file I/O operations with readv and writev, as demonstrated by testcases/kernel/fs/ftest/ftest03 from the Linux Test Project.
{
"affected": [],
"aliases": [
"CVE-2008-3535"
],
"database_specific": {
"cwe_ids": [
"CWE-193"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2008-08-08T19:41:00Z",
"severity": "MODERATE"
},
"details": "Off-by-one error in the iov_iter_advance function in mm/filemap.c in the Linux kernel before 2.6.27-rc2 allows local users to cause a denial of service (system crash) via a certain sequence of file I/O operations with readv and writev, as demonstrated by testcases/kernel/fs/ftest/ftest03 from the Linux Test Project.",
"id": "GHSA-jcg4-g8qf-7xgh",
"modified": "2022-05-02T00:01:15Z",
"published": "2022-05-02T00:01:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2008-3535"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/44492"
},
{
"type": "WEB",
"url": "http://mirror.celinuxforum.org/gitstat/commit-detail.php?commit=94ad374a0751f40d25e22e036c37f7263569d24c"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/31881"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/32190"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/32393"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2008/dsa-1636"
},
{
"type": "WEB",
"url": "http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.27-rc2"
},
{
"type": "WEB",
"url": "http://www.lkml.org/lkml/2008/7/30/446"
},
{
"type": "WEB",
"url": "http://www.redhat.com/support/errata/RHSA-2008-0857.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/31132"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/usn-659-1"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-JF2P-FGGV-V92V
Vulnerability from github – Published: 2025-05-01 15:31 – Updated: 2025-11-05 18:14
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix off-by-one error in do_split
Syzkaller detected a use-after-free issue in ext4_insert_dentry that was caused by out-of-bounds access due to incorrect splitting in do_split.
BUG: KASAN: use-after-free in ext4_insert_dentry+0x36a/0x6d0 fs/ext4/namei.c:2109 Write of size 251 at addr ffff888074572f14 by task syz-executor335/5847
CPU: 0 UID: 0 PID: 5847 Comm: syz-executor335 Not tainted 6.12.0-rc6-syzkaller-00318-ga9cda7c0ffed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189 __asan_memcpy+0x40/0x70 mm/kasan/shadow.c:106 ext4_insert_dentry+0x36a/0x6d0 fs/ext4/namei.c:2109 add_dirent_to_buf+0x3d9/0x750 fs/ext4/namei.c:2154 make_indexed_dir+0xf98/0x1600 fs/ext4/namei.c:2351 ext4_add_entry+0x222a/0x25d0 fs/ext4/namei.c:2455 ext4_add_nondir+0x8d/0x290 fs/ext4/namei.c:2796 ext4_symlink+0x920/0xb50 fs/ext4/namei.c:3431 vfs_symlink+0x137/0x2e0 fs/namei.c:4615 do_symlinkat+0x222/0x3a0 fs/namei.c:4641 __do_sys_symlink fs/namei.c:4662 [inline] __se_sys_symlink fs/namei.c:4660 [inline] __x64_sys_symlink+0x7a/0x90 fs/namei.c:4660 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f
The following loop is located right above 'if' statement.
for (i = count-1; i >= 0; i--) { / is more than half of this entry in 2nd half of the block? / if (size + map[i].size/2 > blocksize/2) break; size += map[i].size; move++; }
'i' in this case could go down to -1, in which case sum of active entries wouldn't exceed half the block size, but previous behaviour would also do split in half if sum would exceed at the very last block, which in case of having too many long name files in a single block could lead to out-of-bounds access and following use-after-free.
Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2025-23150"
],
"database_specific": {
"cwe_ids": [
"CWE-193"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-01T13:15:50Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix off-by-one error in do_split\n\nSyzkaller detected a use-after-free issue in ext4_insert_dentry that was\ncaused by out-of-bounds access due to incorrect splitting in do_split.\n\nBUG: KASAN: use-after-free in ext4_insert_dentry+0x36a/0x6d0 fs/ext4/namei.c:2109\nWrite of size 251 at addr ffff888074572f14 by task syz-executor335/5847\n\nCPU: 0 UID: 0 PID: 5847 Comm: syz-executor335 Not tainted 6.12.0-rc6-syzkaller-00318-ga9cda7c0ffed #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:94 [inline]\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0x169/0x550 mm/kasan/report.c:488\n kasan_report+0x143/0x180 mm/kasan/report.c:601\n kasan_check_range+0x282/0x290 mm/kasan/generic.c:189\n __asan_memcpy+0x40/0x70 mm/kasan/shadow.c:106\n ext4_insert_dentry+0x36a/0x6d0 fs/ext4/namei.c:2109\n add_dirent_to_buf+0x3d9/0x750 fs/ext4/namei.c:2154\n make_indexed_dir+0xf98/0x1600 fs/ext4/namei.c:2351\n ext4_add_entry+0x222a/0x25d0 fs/ext4/namei.c:2455\n ext4_add_nondir+0x8d/0x290 fs/ext4/namei.c:2796\n ext4_symlink+0x920/0xb50 fs/ext4/namei.c:3431\n vfs_symlink+0x137/0x2e0 fs/namei.c:4615\n do_symlinkat+0x222/0x3a0 fs/namei.c:4641\n __do_sys_symlink fs/namei.c:4662 [inline]\n __se_sys_symlink fs/namei.c:4660 [inline]\n __x64_sys_symlink+0x7a/0x90 fs/namei.c:4660\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n \u003c/TASK\u003e\n\nThe following loop is located right above \u0027if\u0027 statement.\n\nfor (i = count-1; i \u003e= 0; i--) {\n\t/* is more than half of this entry in 2nd half of the block? */\n\tif (size + map[i].size/2 \u003e blocksize/2)\n\t\tbreak;\n\tsize += map[i].size;\n\tmove++;\n}\n\n\u0027i\u0027 in this case could go down to -1, in which case sum of active entries\nwouldn\u0027t exceed half the block size, but previous behaviour would also do\nsplit in half if sum would exceed at the very last block, which in case of\nhaving too many long name files in a single block could lead to\nout-of-bounds access and following use-after-free.\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller.",
"id": "GHSA-jf2p-fggv-v92v",
"modified": "2025-11-05T18:14:24Z",
"published": "2025-05-01T15:31:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-23150"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/16d9067f00e3a7d1df7c3aa9c20d214923d27e10"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/17df39f455f1289319d4d09e4826aa46852ffd17"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2883e9e74f73f9265e5f8d1aaaa89034b308e433"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2eeb1085bf7bd5c7ba796ca4119925fa5d336a3f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/35d0aa6db9d93307085871ceab8a729594a98162"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/515c34cff899eb5dae6aa7eee01c1295b07d81af"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/94824ac9a8aaf2fb3c54b4bdde842db80ffa555d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ab0cc5c25552ae0d20eae94b40a93be11b080fc5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b96bd2c3db26ad0daec5b78c85c098b53900e2e1"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Implementation
When copying character arrays or using character manipulation methods, the correct size parameter must be used to account for the null terminator that needs to be added at the end of the array. Some examples of functions susceptible to this weakness in C include strcpy(), strncpy(), strcat(), strncat(), printf(), sprintf(), scanf() and sscanf().
No CAPEC attack patterns related to this CWE.