Common Weakness Enumeration
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.
15696 vulnerabilities reference this CWE, most recent first.
GHSA-8H2H-4X77-6CRV
Vulnerability from github – Published: 2025-04-08 18:34 – Updated: 2025-07-14 21:31
VLAI
Details
A local code execution vulnerability exists in the Rockwell Automation Arena® due to a threat actor being able to write outside of the allocated memory buffer. The flaw is a result of improper validation of user-supplied data. If exploited a threat actor can disclose information and execute arbitrary code on the system. To exploit the vulnerability a legitimate user must open a malicious DOE file.
Severity
{
"affected": [],
"aliases": [
"CVE-2025-2293"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-08T16:15:26Z",
"severity": "HIGH"
},
"details": "A local code execution vulnerability exists in the Rockwell Automation\u00a0Arena\u00ae\u00a0due to a threat actor being able to write outside of the allocated memory buffer. The flaw is a result of improper validation of user-supplied data. \u00a0If exploited a threat actor can disclose information and execute arbitrary code on the system. To exploit the vulnerability a legitimate user must open a malicious DOE file.",
"id": "GHSA-8h2h-4x77-6crv",
"modified": "2025-07-14T21:31:43Z",
"published": "2025-04-08T18:34:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-2293"
},
{
"type": "WEB",
"url": "https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1726.html"
}
],
"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:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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-8H2Q-PRR9-7WH9
Vulnerability from github – Published: 2022-05-24 17:33 – Updated: 2022-05-24 17:33
VLAI
Details
libmaxminddb before 1.4.3 has a heap-based buffer over-read in dump_entry_data_list in maxminddb.c.
{
"affected": [],
"aliases": [
"CVE-2020-28241"
],
"database_specific": {
"cwe_ids": [
"CWE-125",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-11-06T05:15:00Z",
"severity": "MODERATE"
},
"details": "libmaxminddb before 1.4.3 has a heap-based buffer over-read in dump_entry_data_list in maxminddb.c.",
"id": "GHSA-8h2q-prr9-7wh9",
"modified": "2022-05-24T17:33:20Z",
"published": "2022-05-24T17:33:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-28241"
},
{
"type": "WEB",
"url": "https://github.com/maxmind/libmaxminddb/issues/236"
},
{
"type": "WEB",
"url": "https://github.com/maxmind/libmaxminddb/pull/237"
},
{
"type": "WEB",
"url": "https://github.com/maxmind/libmaxminddb/compare/1.4.2...1.4.3"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/11/msg00019.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6WUK4UCOB5FJVK36E22IRLEYGKMUWGBG"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ELTOHZBPO6XVUVADP4DPZBNQCPTYOQBV"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202011-15"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-8H2W-GVJ6-VJCM
Vulnerability from github – Published: 2026-03-24 12:30 – Updated: 2026-03-24 12:30
VLAI
Details
AIDA64 Extreme 5.99.4900 contains a structured exception handler buffer overflow vulnerability in the logging functionality that allows local attackers to execute arbitrary code by supplying a malicious CSV log file path. Attackers can inject shellcode through the Hardware Monitoring logging preferences to overflow the buffer and trigger code execution when the application processes the log file path.
Severity
{
"affected": [],
"aliases": [
"CVE-2019-25629"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-24T12:16:02Z",
"severity": "HIGH"
},
"details": "AIDA64 Extreme 5.99.4900 contains a structured exception handler buffer overflow vulnerability in the logging functionality that allows local attackers to execute arbitrary code by supplying a malicious CSV log file path. Attackers can inject shellcode through the Hardware Monitoring logging preferences to overflow the buffer and trigger code execution when the application processes the log file path.",
"id": "GHSA-8h2w-gvj6-vjcm",
"modified": "2026-03-24T12:30:24Z",
"published": "2026-03-24T12:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-25629"
},
{
"type": "WEB",
"url": "https://www.aida64.com"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/46660"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/aida64-extreme-seh-buffer-overflow-via-logging"
},
{
"type": "WEB",
"url": "http://download.aida64.com/aida64extreme599.exe"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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-8H46-5M9H-7553
Vulnerability from github – Published: 2021-05-21 14:20 – Updated: 2024-10-30 21:30
VLAI
Summary
Heap out of bounds write in `RaggedBinCount`
Details
Impact
If the splits argument of RaggedBincount does not specify a valid SparseTensor, then an attacker can trigger a heap buffer overflow:
import tensorflow as tf
tf.raw_ops.RaggedBincount(splits=[7,8], values= [5, 16, 51, 76, 29, 27, 54, 95],\
size= 59, weights= [0, 0, 0, 0, 0, 0, 0, 0],\
binary_output=False)
This will cause a read from outside the bounds of the splits tensor buffer in the implementation of the RaggedBincount op:
for (int idx = 0; idx < num_values; ++idx) {
while (idx >= splits(batch_idx)) {
batch_idx++;
}
...
if (bin < size) {
if (binary_output_) {
out(batch_idx - 1, bin) = T(1);
} else {
T value = (weights_size > 0) ? weights(idx) : T(1);
out(batch_idx - 1, bin) += value;
}
}
}
Before the for loop, batch_idx is set to 0. The attacker sets splits(0) to be 7, hence the while loop does not execute and batch_idx remains 0. This then results in writing to out(-1, bin), which is before the heap allocated buffer for the output tensor.
Patches
We have patched the issue in GitHub commit eebb96c2830d48597d055d247c0e9aebaea94cd5.
The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2 and TensorFlow 2.3.3, as these are also affected.
For more information
Please consult our security guide for more information regarding the security model and how to contact us with issues and questions.
Attribution
This vulnerability has been reported by members of the Aivul Team from Qihoo 360.
Severity
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.3.0"
},
{
"fixed": "2.3.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.4.0"
},
{
"fixed": "2.4.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.3.0"
},
{
"fixed": "2.3.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.4.0"
},
{
"fixed": "2.4.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.3.0"
},
{
"fixed": "2.3.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.4.0"
},
{
"fixed": "2.4.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-29514"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2021-05-18T23:40:54Z",
"nvd_published_at": "2021-05-14T20:15:00Z",
"severity": "LOW"
},
"details": "### Impact\nIf the `splits` argument of `RaggedBincount` does not specify a valid [`SparseTensor`](https://www.tensorflow.org/api_docs/python/tf/sparse/SparseTensor), then an attacker can trigger a heap buffer overflow:\n\n```python\nimport tensorflow as tf\ntf.raw_ops.RaggedBincount(splits=[7,8], values= [5, 16, 51, 76, 29, 27, 54, 95],\\\n size= 59, weights= [0, 0, 0, 0, 0, 0, 0, 0],\\\n binary_output=False)\n```\n\nThis will cause a read from outside the bounds of the `splits` tensor buffer in the [implementation of the `RaggedBincount` op](https://github.com/tensorflow/tensorflow/blob/8b677d79167799f71c42fd3fa074476e0295413a/tensorflow/core/kernels/bincount_op.cc#L430-L446):\n \n```cc \n for (int idx = 0; idx \u003c num_values; ++idx) {\n while (idx \u003e= splits(batch_idx)) {\n batch_idx++;\n }\n ...\n if (bin \u003c size) {\n if (binary_output_) {\n out(batch_idx - 1, bin) = T(1);\n } else {\n T value = (weights_size \u003e 0) ? weights(idx) : T(1);\n out(batch_idx - 1, bin) += value;\n }\n } \n }\n```\n\nBefore the `for` loop, `batch_idx` is set to 0. The attacker sets `splits(0)` to be 7, hence the `while` loop does not execute and `batch_idx` remains 0. This then results in writing to `out(-1, bin)`, which is before the heap allocated buffer for the output tensor.\n\n### Patches\nWe have patched the issue in GitHub commit [eebb96c2830d48597d055d247c0e9aebaea94cd5](https://github.com/tensorflow/tensorflow/commit/eebb96c2830d48597d055d247c0e9aebaea94cd5).\n\nThe fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2 and TensorFlow 2.3.3, as these are also affected.\n\n### For more information\nPlease consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and how to contact us with issues and questions.\n\n### Attribution\nThis vulnerability has been reported by members of the Aivul Team from Qihoo 360.",
"id": "GHSA-8h46-5m9h-7553",
"modified": "2024-10-30T21:30:51Z",
"published": "2021-05-21T14:20:51Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-8h46-5m9h-7553"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-29514"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/commit/eebb96c2830d48597d055d247c0e9aebaea94cd5"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-442.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-640.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-151.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/tensorflow/tensorflow"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Heap out of bounds write in `RaggedBinCount`"
}
GHSA-8H84-R7FQ-5PCM
Vulnerability from github – Published: 2022-05-24 17:35 – Updated: 2022-05-24 17:35
VLAI
Details
A flaw was found in ImageMagick in MagickCore/quantum-private.h. An attacker who submits a crafted file that is processed by ImageMagick could trigger a heap buffer overflow. This would most likely lead to an impact to application availability, but could potentially lead to an impact to data integrity as well. This flaw affects ImageMagick versions prior to 7.0.9-0.
{
"affected": [],
"aliases": [
"CVE-2020-27752"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-12-08T22:15:00Z",
"severity": "MODERATE"
},
"details": "A flaw was found in ImageMagick in MagickCore/quantum-private.h. An attacker who submits a crafted file that is processed by ImageMagick could trigger a heap buffer overflow. This would most likely lead to an impact to application availability, but could potentially lead to an impact to data integrity as well. This flaw affects ImageMagick versions prior to 7.0.9-0.",
"id": "GHSA-8h84-r7fq-5pcm",
"modified": "2022-05-24T17:35:39Z",
"published": "2022-05-24T17:35:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27752"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1894226"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-8H84-VMJF-PCMJ
Vulnerability from github – Published: 2022-12-19 21:30 – Updated: 2022-12-28 21:30
VLAI
Details
When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2's heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded.
Severity
7.1 (High)
{
"affected": [],
"aliases": [
"CVE-2022-3775"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-19T20:15:00Z",
"severity": "HIGH"
},
"details": "When rendering certain unicode sequences, grub2\u0027s font code doesn\u0027t proper validate if the informed glyph\u0027s width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2\u0027s heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded.",
"id": "GHSA-8h84-vmjf-pcmj",
"modified": "2022-12-28T21:30:21Z",
"published": "2022-12-19T21:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3775"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/cve-2022-3775"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202311-14"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8H89-9X33-W5PX
Vulnerability from github – Published: 2024-01-10 00:30 – Updated: 2024-01-12 21:30
VLAI
Details
AMI’s SPx contains a vulnerability in the BMC where an Attacker may cause a heap memory corruption via an adjacent network. A successful exploitation of this vulnerability may lead to a loss of confidentiality, integrity, and/or availability.
Severity
8.3 (High)
{
"affected": [],
"aliases": [
"CVE-2023-37297"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-01-09T23:15:09Z",
"severity": "HIGH"
},
"details": "\nAMI\u2019s\nSPx contains a vulnerability in the BMC where an Attacker may\ncause a heap memory corruption via an adjacent network. A successful exploitation\nof this vulnerability may lead to a loss of confidentiality, integrity, and/or\navailability. \n\n\n\n\n\n\n\n \n\n\n\n\n\n\n\n",
"id": "GHSA-8h89-9x33-w5px",
"modified": "2024-01-12T21:30:19Z",
"published": "2024-01-10T00:30:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-37297"
},
{
"type": "WEB",
"url": "https://9443417.fs1.hubspotusercontent-na1.net/hubfs/9443417/Security%20Advisories/AMI-SA-2023010.pdf"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8H89-JJ6W-G26P
Vulnerability from github – Published: 2022-05-13 01:03 – Updated: 2022-05-13 01:03
VLAI
Details
An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local user can exploit this by sending a specially crafted message to PID1, causing the stack pointer to jump over the stack guard pages into an unmapped memory region and trigger a denial of service (systemd PID1 crash and kernel panic).
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2019-6454"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-03-21T16:01:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local user can exploit this by sending a specially crafted message to PID1, causing the stack pointer to jump over the stack guard pages into an unmapped memory region and trigger a denial of service (systemd PID1 crash and kernel panic).",
"id": "GHSA-8h89-jj6w-g26p",
"modified": "2022-05-13T01:03:32Z",
"published": "2022-05-13T01:03:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-6454"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:0368"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:0990"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:1322"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:1502"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:2805"
},
{
"type": "WEB",
"url": "https://github.com/systemd/systemd/commits/master/src/libsystemd/sd-bus/bus-objects.c"
},
{
"type": "WEB",
"url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10278"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2019/02/msg00031.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N67IOBOTDOMVNQJ5QRU2MXLEECXPGNVJ"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20190327-0004"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3891-1"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2019/dsa-4393"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00070.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062.html"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2019/02/18/3"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2019/02/19/1"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2021/07/20/2"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/107081"
}
],
"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"
}
]
}
GHSA-8H8V-4PGC-X2VP
Vulnerability from github – Published: 2022-05-24 17:34 – Updated: 2026-05-29 15:30
VLAI
Details
A CWE-787: Out-of-bounds Write vulnerability exists in the Web Server on Modicon M340, Modicon Quantum and Modicon Premium Legacy offers and their Communication Modules (see notification for details) which could cause corruption of data, a crash, or code execution when uploading a specially crafted file on the controller over FTP.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2020-7563"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-11-18T14:15:00Z",
"severity": "HIGH"
},
"details": "A CWE-787: Out-of-bounds Write vulnerability exists in the Web Server on Modicon M340, Modicon Quantum and Modicon Premium Legacy offers and their Communication Modules (see notification for details) which could cause corruption of data, a crash, or code execution when uploading a specially crafted file on the controller over FTP.",
"id": "GHSA-8h8v-4pgc-x2vp",
"modified": "2026-05-29T15:30:22Z",
"published": "2022-05-24T17:34:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-7563"
},
{
"type": "WEB",
"url": "https://www.se.com/ww/en/download/document/SEVD-2020-315-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8HC5-MR39-QW3V
Vulnerability from github – Published: 2022-05-13 01:20 – Updated: 2022-05-13 01:20
VLAI
Details
Stack-based buffer overflow in the ej_update_variables function in router/httpd/web.c on ASUS routers (when using software from https://github.com/RMerl/asuswrt-merlin) allows web authenticated attackers to execute code via a request that updates a setting. In ej_update_variables, the length of the variable action_script is not checked, as long as it includes a "_wan_if" substring.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2018-5721"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-01-17T06:29:00Z",
"severity": "HIGH"
},
"details": "Stack-based buffer overflow in the ej_update_variables function in router/httpd/web.c on ASUS routers (when using software from https://github.com/RMerl/asuswrt-merlin) allows web authenticated attackers to execute code via a request that updates a setting. In ej_update_variables, the length of the variable action_script is not checked, as long as it includes a \"_wan_if\" substring.",
"id": "GHSA-8hc5-mr39-qw3v",
"modified": "2022-05-13T01:20:20Z",
"published": "2022-05-13T01:20:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-5721"
},
{
"type": "WEB",
"url": "http://www.w0lfzhang.com/2018/01/17/ASUS-router-stack-overflow-in-http-server"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation MIT-3
Requirements
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
Architecture and Design
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
Operation
Build and Compilation
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
Implementation
- 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
Operation
Build and Compilation
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
Operation
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
Implementation
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.