CWE-787
Allowed-with-ReviewOut-of-bounds Write
Abstraction: Base · Status: Draft
The product writes data past the end, or before the beginning, of the intended buffer.
15142 vulnerabilities reference this CWE, most recent first.
GHSA-24JV-89R5-6FVM
Vulnerability from github – Published: 2022-05-24 17:08 – Updated: 2022-05-24 17:08An exploitable out-of-bounds write vulnerability exists in the uncompress_scan_line function of the igcore19d.dll library of Accusoft ImageGear, version 19.5.0. A specially crafted PCX file can cause an out-of-bounds write, resulting in a remote code execution. An attacker needs to provide a malformed file to the victim to trigger the vulnerability.
{
"affected": [],
"aliases": [
"CVE-2020-6063"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-02-11T21:15:00Z",
"severity": "MODERATE"
},
"details": "An exploitable out-of-bounds write vulnerability exists in the uncompress_scan_line function of the igcore19d.dll library of Accusoft ImageGear, version 19.5.0. A specially crafted PCX file can cause an out-of-bounds write, resulting in a remote code execution. An attacker needs to provide a malformed file to the victim to trigger the vulnerability.",
"id": "GHSA-24jv-89r5-6fvm",
"modified": "2022-05-24T17:08:36Z",
"published": "2022-05-24T17:08:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6063"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2020-0986"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-24MF-QJ78-VM87
Vulnerability from github – Published: 2024-12-29 12:30 – Updated: 2025-01-08 00:30In the Linux kernel, the following vulnerability has been resolved:
nfs/localio: must clear res.replen in nfs_local_read_done
Otherwise memory corruption can occur due to NFSv3 LOCALIO reads leaving garbage in res.replen: - nfs3_read_done() copies that into server->read_hdrsize; from there nfs3_proc_read_setup() copies it to args.replen in new requests. - nfs3_xdr_enc_read3args() passes that to rpc_prepare_reply_pages() which includes it in hdrsize for xdr_init_pages, so that rq_rcv_buf contains a ridiculous len. - This is copied to rq_private_buf and xs_read_stream_request() eventually passes the kvec to sock_recvmsg() which receives incoming data into entirely the wrong place.
This is easily reproduced with NFSv3 LOCALIO that is servicing reads when it is made to pivot back to using normal RPC. This switch back to using normal NFSv3 with RPC can occur for a few reasons but this issue was exposed with a test that stops and then restarts the NFSv3 server while LOCALIO is performing heavy read IO.
{
"affected": [],
"aliases": [
"CVE-2024-56740"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-29T12:15:07Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfs/localio: must clear res.replen in nfs_local_read_done\n\nOtherwise memory corruption can occur due to NFSv3 LOCALIO reads\nleaving garbage in res.replen:\n- nfs3_read_done() copies that into server-\u003eread_hdrsize; from there\n nfs3_proc_read_setup() copies it to args.replen in new requests.\n- nfs3_xdr_enc_read3args() passes that to rpc_prepare_reply_pages()\n which includes it in hdrsize for xdr_init_pages, so that rq_rcv_buf\n contains a ridiculous len.\n- This is copied to rq_private_buf and xs_read_stream_request()\n eventually passes the kvec to sock_recvmsg() which receives incoming\n data into entirely the wrong place.\n\nThis is easily reproduced with NFSv3 LOCALIO that is servicing reads\nwhen it is made to pivot back to using normal RPC. This switch back\nto using normal NFSv3 with RPC can occur for a few reasons but this\nissue was exposed with a test that stops and then restarts the NFSv3\nserver while LOCALIO is performing heavy read IO.",
"id": "GHSA-24mf-qj78-vm87",
"modified": "2025-01-08T00:30:48Z",
"published": "2024-12-29T12:30:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56740"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/650703bc4ed3edf841e851c99ab8e7ba9e5262a3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/de5dac261eeab99762bbdf7c20cee5d26ef4462e"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-24PF-H82M-5VVV
Vulnerability from github – Published: 2022-05-17 02:42 – Updated: 2022-05-17 02:42An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. A stack out-of-bounds write in onigenc_unicode_get_case_fold_codes_by_str() occurs during regular expression compilation. Code point 0xFFFFFFFF is not properly handled in unicode_unfold_key(). A malformed regular expression could result in 4 bytes being written off the end of a stack buffer of expand_case_fold_string() during the call to onigenc_unicode_get_case_fold_codes_by_str(), a typical stack buffer overflow.
{
"affected": [],
"aliases": [
"CVE-2017-9225"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-05-24T15:29:00Z",
"severity": "CRITICAL"
},
"details": "An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. A stack out-of-bounds write in onigenc_unicode_get_case_fold_codes_by_str() occurs during regular expression compilation. Code point 0xFFFFFFFF is not properly handled in unicode_unfold_key(). A malformed regular expression could result in 4 bytes being written off the end of a stack buffer of expand_case_fold_string() during the call to onigenc_unicode_get_case_fold_codes_by_str(), a typical stack buffer overflow.",
"id": "GHSA-24pf-h82m-5vvv",
"modified": "2022-05-17T02:42:49Z",
"published": "2022-05-17T02:42:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-9225"
},
{
"type": "WEB",
"url": "https://github.com/kkos/oniguruma/issues/56"
},
{
"type": "WEB",
"url": "https://github.com/kkos/oniguruma/commit/166a6c3999bf06b4de0ab4ce6b088a468cc4029f"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-24Q8-RJJM-C7VV
Vulnerability from github – Published: 2022-05-24 17:28 – Updated: 2022-05-24 17:28In skb_to_mamac of networking.c, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-143560807
{
"affected": [],
"aliases": [
"CVE-2020-0432"
],
"database_specific": {
"cwe_ids": [
"CWE-190",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-09-17T19:15:00Z",
"severity": "HIGH"
},
"details": "In skb_to_mamac of networking.c, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-143560807",
"id": "GHSA-24q8-rjjm-c7vv",
"modified": "2022-05-24T17:28:51Z",
"published": "2022-05-24T17:28:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-0432"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/pixel/2020-09-01"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-24V2-MRJ2-4WPC
Vulnerability from github – Published: 2025-01-07 18:30 – Updated: 2025-01-09 09:31Memory safety bugs present in Firefox 133 and Thunderbird 133. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 134.
{
"affected": [],
"aliases": [
"CVE-2025-0247"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-07T16:15:39Z",
"severity": "HIGH"
},
"details": "Memory safety bugs present in Firefox 133 and Thunderbird 133. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox \u003c 134.",
"id": "GHSA-24v2-mrj2-4wpc",
"modified": "2025-01-09T09:31:41Z",
"published": "2025-01-07T18:30:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0247"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=1835193%2C1910021%2C1919803%2C1931576%2C1931948%2C1932173"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2025-01"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2025-04"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-24V8-25PR-R3R4
Vulnerability from github – Published: 2022-12-22 21:30 – Updated: 2025-04-15 15:30Mozilla developers and community members Lukas Bernhard, Gabriele Svelto, Randell Jesup, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 107. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 108.
{
"affected": [],
"aliases": [
"CVE-2022-46879"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-22T20:15:00Z",
"severity": "HIGH"
},
"details": "Mozilla developers and community members Lukas Bernhard, Gabriele Svelto, Randell Jesup, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 107. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox \u003c 108.",
"id": "GHSA-24v8-25pr-r3r4",
"modified": "2025-04-15T15:30:38Z",
"published": "2022-12-22T21:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-46879"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=1736224%2C1793407%2C1794249%2C1795845%2C1797682%2C1797720%2C1798494%2C1799479"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202305-06"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2022-51"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-24VC-J5Q2-H3F9
Vulnerability from github – Published: 2023-11-14 12:30 – Updated: 2023-11-14 12:30A heap-based buffer overflow vulnerability exists in the HTTP Server form boundary functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted network packet can lead to code execution. An attacker can send a malicious packet to trigger this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2023-27882"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-11-14T10:15:27Z",
"severity": "CRITICAL"
},
"details": "A heap-based buffer overflow vulnerability exists in the HTTP Server form boundary functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted network packet can lead to code execution. An attacker can send a malicious packet to trigger this vulnerability.",
"id": "GHSA-24vc-j5q2-h3f9",
"modified": "2023-11-14T12:30:26Z",
"published": "2023-11-14T12:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27882"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1733"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1733"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-24VQ-QFC5-QRMJ
Vulnerability from github – Published: 2026-03-19 18:31 – Updated: 2026-04-29 21:31A heap-buffer-overflow vulnerability exists in wolfSSL's wolfSSL_d2i_SSL_SESSION() function. When deserializing session data with SESSION_CERTS enabled, certificate and session id lengths are read from an untrusted input without bounds validation, allowing an attacker to overflow fixed-size buffers and corrupt heap memory. A maliciously crafted session would need to be loaded from an external source to trigger this vulnerability. Internal sessions were not vulnerable.
{
"affected": [],
"aliases": [
"CVE-2026-2646"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-19T18:16:22Z",
"severity": "MODERATE"
},
"details": "A heap-buffer-overflow vulnerability exists in wolfSSL\u0027s wolfSSL_d2i_SSL_SESSION() function. When deserializing session data with SESSION_CERTS enabled, certificate and session id lengths are read from an untrusted input without bounds validation, allowing an attacker to overflow fixed-size buffers and corrupt heap memory. A maliciously crafted session would need to be loaded from an external source to trigger this vulnerability. Internal sessions were not vulnerable.",
"id": "GHSA-24vq-qfc5-qrmj",
"modified": "2026-04-29T21:31:19Z",
"published": "2026-03-19T18:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2646"
},
{
"type": "WEB",
"url": "https://github.com/wolfSSL/wolfssl/pull/9748"
},
{
"type": "WEB",
"url": "https://github.com/wolfSSL/wolfssl/pull/9949"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:H/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-24W9-MRR8-9P7H
Vulnerability from github – Published: 2022-02-12 00:00 – Updated: 2022-02-18 00:00In GKI_getbuf of gki_buffer.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-205729183
{
"affected": [],
"aliases": [
"CVE-2021-39675"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-02-11T18:15:00Z",
"severity": "CRITICAL"
},
"details": "In GKI_getbuf of gki_buffer.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-205729183",
"id": "GHSA-24w9-mrr8-9p7h",
"modified": "2022-02-18T00:00:41Z",
"published": "2022-02-12T00:00:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39675"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2022-02-01"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-24WC-68MR-7MCQ
Vulnerability from github – Published: 2021-12-29 00:00 – Updated: 2022-04-02 00:00FATEK WinProladder Versions 3.30_24518 and prior are vulnerable to an out-of-bounds write while processing project files, which may allow an attacker to execute arbitrary code.
{
"affected": [],
"aliases": [
"CVE-2021-43554"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-12-28T19:15:00Z",
"severity": "HIGH"
},
"details": "FATEK WinProladder Versions 3.30_24518 and prior are vulnerable to an out-of-bounds write while processing project files, which may allow an attacker to execute arbitrary code.",
"id": "GHSA-24wc-68mr-7mcq",
"modified": "2022-04-02T00:00:51Z",
"published": "2021-12-29T00:00:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43554"
},
{
"type": "WEB",
"url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-320-01"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-22-028"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-22-030"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-22-033"
}
],
"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"
}
]
}
Mitigation MIT-3
Strategy: Language Selection
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow protection, but the protection can be disabled by the programmer.
- Be wary that a language's interface to native code may still be subject to overflows, even if the language itself is theoretically safe.
Mitigation MIT-4.1
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- Examples include the Safe C String Library (SafeStr) by Messier and Viega [REF-57], and the Strsafe.h library from Microsoft [REF-56]. These libraries provide safer versions of overflow-prone string-handling functions.
Mitigation MIT-10
Strategy: Environment Hardening
- Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
- D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation MIT-9
- Consider adhering to the following rules when allocating and managing an application's memory:
- Double check that the buffer is as large as specified.
- When using functions that accept a number of bytes to copy, such as strncpy(), be aware that if the destination buffer size is equal to the source buffer size, it may not NULL-terminate the string.
- Check buffer boundaries if accessing the buffer in a loop and make sure there is no danger of writing past the allocated space.
- If necessary, truncate all input strings to a reasonable length before passing them to the copy and concatenation functions.
Mitigation MIT-11
Strategy: Environment Hardening
- Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
- Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
- For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
Mitigation MIT-12
Strategy: Environment Hardening
- Use a CPU and operating system that offers Data Execution Protection (using hardware NX or XD bits) or the equivalent techniques that simulate this feature in software, such as PaX [REF-60] [REF-61]. These techniques ensure that any instruction executed is exclusively at a memory address that is part of the code segment.
- For more information on these techniques see D3-PSEP (Process Segment Execution Prevention) from D3FEND [REF-1336].
Mitigation MIT-13
Replace unbounded copy functions with analogous functions that support length arguments, such as strcpy with strncpy. Create these if they are not available.
No CAPEC attack patterns related to this CWE.