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.
15627 vulnerabilities reference this CWE, most recent first.
GHSA-FFFR-W5CQ-WGHR
Vulnerability from github – Published: 2022-05-24 17:29 – Updated: 2022-06-30 00:00
VLAI
Details
Heap buffer overflow in SwiftShader in Google Chrome prior to 84.0.4147.135 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2020-6556"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-09-21T20:15:00Z",
"severity": "HIGH"
},
"details": "Heap buffer overflow in SwiftShader in Google Chrome prior to 84.0.4147.135 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-fffr-w5cq-wghr",
"modified": "2022-06-30T00:00:30Z",
"published": "2022-05-24T17:29:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6556"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2020/08/stable-channel-update-for-desktop_18.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1115345"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EE7XWIZBME7JAY7N6CGPET4CLNHHEIVT"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4824"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00049.html"
}
],
"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-FFFX-3H8F-F943
Vulnerability from github – Published: 2022-09-21 00:00 – Updated: 2025-10-22 00:32
VLAI
Details
The issue was addressed with improved bounds checks. This issue is fixed in macOS Monterey 12.6, iOS 15.7 and iPadOS 15.7, iOS 16, macOS Big Sur 11.7. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-32917"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-09-20T21:15:00Z",
"severity": "HIGH"
},
"details": "The issue was addressed with improved bounds checks. This issue is fixed in macOS Monterey 12.6, iOS 15.7 and iPadOS 15.7, iOS 16, macOS Big Sur 11.7. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..",
"id": "GHSA-fffx-3h8f-f943",
"modified": "2025-10-22T00:32:36Z",
"published": "2022-09-21T00:00:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-32917"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213443"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213444"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213445"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213446"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-32917"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2022/Oct/39"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2022/Oct/40"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2022/Oct/43"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2022/Oct/45"
}
],
"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-FFG6-3WFR-47XC
Vulnerability from github – Published: 2024-03-25 09:32 – Updated: 2025-03-13 21:31
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
mptcp: fix data stream corruption
Maxim reported several issues when forcing a TCP transparent proxy to use the MPTCP protocol for the inbound connections. He also provided a clean reproducer.
The problem boils down to 'mptcp_frag_can_collapse_to()' assuming that only MPTCP will use the given page_frag.
If others - e.g. the plain TCP protocol - allocate page fragments, we can end-up re-using already allocated memory for mptcp_data_frag.
Fix the issue ensuring that the to-be-expanded data fragment is located at the current page frag end.
v1 -> v2: - added missing fixes tag (Mat)
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2021-47152"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-25T09:15:09Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix data stream corruption\n\nMaxim reported several issues when forcing a TCP transparent proxy\nto use the MPTCP protocol for the inbound connections. He also\nprovided a clean reproducer.\n\nThe problem boils down to \u0027mptcp_frag_can_collapse_to()\u0027 assuming\nthat only MPTCP will use the given page_frag.\n\nIf others - e.g. the plain TCP protocol - allocate page fragments,\nwe can end-up re-using already allocated memory for mptcp_data_frag.\n\nFix the issue ensuring that the to-be-expanded data fragment is\nlocated at the current page frag end.\n\nv1 -\u003e v2:\n - added missing fixes tag (Mat)",
"id": "GHSA-ffg6-3wfr-47xc",
"modified": "2025-03-13T21:31:01Z",
"published": "2024-03-25T09:32:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47152"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/18e7f0580da15cac1e79d73683ada5a9e70980f8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/29249eac5225429b898f278230a6ca2baa1ae154"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3267a061096efc91eda52c2a0c61ba76e46e4b34"
}
],
"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-FFGH-6Q37-4PJ7
Vulnerability from github – Published: 2021-12-27 00:00 – Updated: 2022-01-11 00:02
VLAI
Details
Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D6220 before 1.0.0.68, D6400 before 1.0.0.102, D7000v2 before 1.0.0.74, D8500 before 1.0.3.60, DC112A before 1.0.0.56, R6300v2 before 1.0.4.50, R6400 before 1.0.1.68, R7000 before 1.0.11.116, R7100LG before 1.0.0.70, RBS40V before 2.6.2.8, RBW30 before 2.6.2.2, RS400 before 1.5.1.80, R7000P before 1.3.2.132, and R6900P before 1.3.2.132.
{
"affected": [],
"aliases": [
"CVE-2021-45638"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-12-26T01:15:00Z",
"severity": "CRITICAL"
},
"details": "Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D6220 before 1.0.0.68, D6400 before 1.0.0.102, D7000v2 before 1.0.0.74, D8500 before 1.0.3.60, DC112A before 1.0.0.56, R6300v2 before 1.0.4.50, R6400 before 1.0.1.68, R7000 before 1.0.11.116, R7100LG before 1.0.0.70, RBS40V before 2.6.2.8, RBW30 before 2.6.2.2, RS400 before 1.5.1.80, R7000P before 1.3.2.132, and R6900P before 1.3.2.132.",
"id": "GHSA-ffgh-6q37-4pj7",
"modified": "2022-01-11T00:02:00Z",
"published": "2021-12-27T00:00:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45638"
},
{
"type": "WEB",
"url": "https://kb.netgear.com/000064496/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-PSV-2020-0464"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-FFGM-4QMX-XP28
Vulnerability from github – Published: 2022-02-17 00:00 – Updated: 2022-04-01 00:01
VLAI
Details
A stack-based buffer overflow vulnerability exists in the Gerber Viewer gerber and excellon ReadIJCoord coordinate parsing functionality of KiCad EDA 6.0.1 and master commit de006fc010. A specially-crafted gerber or excellon file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-23804"
],
"database_specific": {
"cwe_ids": [
"CWE-121",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-02-16T17:15:00Z",
"severity": "HIGH"
},
"details": "A stack-based buffer overflow vulnerability exists in the Gerber Viewer gerber and excellon ReadIJCoord coordinate parsing functionality of KiCad EDA 6.0.1 and master commit de006fc010. A specially-crafted gerber or excellon file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.",
"id": "GHSA-ffgm-4qmx-xp28",
"modified": "2022-04-01T00:01:09Z",
"published": "2022-02-17T00:00:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-23804"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00009.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/08/msg00010.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5EMCGSSP3FIWCSL2KXVXLF35JYZKZE5Q"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2022-1453"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2022/dsa-5214"
}
],
"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"
}
]
}
GHSA-FFGQ-5R6G-59G7
Vulnerability from github – Published: 2024-02-09 09:31 – Updated: 2024-02-14 21:30
VLAI
Details
KiTTY versions 0.76.1.13 and before is vulnerable to a stack-based buffer overflow via the username, occurs due to insufficient bounds checking and input sanitization (at line 2600). This allows an attacker to overwrite adjacent memory, which leads to arbitrary code execution.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-25004"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-09T07:16:00Z",
"severity": "HIGH"
},
"details": "KiTTY versions 0.76.1.13 and before is vulnerable to a stack-based buffer overflow via the username, occurs due to insufficient bounds checking and input sanitization (at line 2600). This allows an attacker to overwrite adjacent memory, which leads to arbitrary code execution.",
"id": "GHSA-ffgq-5r6g-59g7",
"modified": "2024-02-14T21:30:33Z",
"published": "2024-02-09T09:31:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-25004"
},
{
"type": "WEB",
"url": "https://blog.defcesco.io/CVE-2024-25003-CVE-2024-25004"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/177031/KiTTY-0.76.1.13-Command-Injection.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/177032/KiTTY-0.76.1.13-Buffer-Overflows.html"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2024/Feb/13"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2024/Feb/14"
}
],
"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-FFGW-JXV7-9VP7
Vulnerability from github – Published: 2024-11-12 21:30 – Updated: 2024-11-12 21:30
VLAI
Details
Illustrator versions 28.7.1 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-45114"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-12T19:15:12Z",
"severity": "HIGH"
},
"details": "Illustrator versions 28.7.1 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-ffgw-jxv7-9vp7",
"modified": "2024-11-12T21:30:52Z",
"published": "2024-11-12T21:30:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-45114"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/illustrator/apsb24-87.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"
}
]
}
GHSA-FFHW-7RJ7-7C3X
Vulnerability from github – Published: 2022-05-24 17:38 – Updated: 2022-05-24 17:38
VLAI
Details
A vulnerability has been identified in Solid Edge (All Versions < SE2021MP2). Affected applications lack proper validation of user-supplied data when parsing PAR files. This could lead to a stack based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of the current process.
{
"affected": [],
"aliases": [
"CVE-2020-28384"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-01-12T21:15:00Z",
"severity": "HIGH"
},
"details": "A vulnerability has been identified in Solid Edge (All Versions \u003c SE2021MP2). Affected applications lack proper validation of user-supplied data when parsing PAR files. This could lead to a stack based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of the current process.",
"id": "GHSA-ffhw-7rj7-7c3x",
"modified": "2022-05-24T17:38:36Z",
"published": "2022-05-24T17:38:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-28384"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-979834.pdf"
},
{
"type": "WEB",
"url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-012-04"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-055"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-076"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-FFJM-4QWC-7CMF
Vulnerability from github – Published: 2022-09-16 21:04 – Updated: 2022-09-19 19:56
VLAI
Summary
TensorFlow vulnerable to OOB write in `scatter_nd` in TF Lite
Details
Impact
The ScatterNd function takes an input argument that determines the indices of of the output tensor. An input index greater than the output tensor or less than zero will either write content at the wrong index or trigger a crash.
Patches
We have patched the issue in GitHub commit b4d4b4cb019bd7240a52daa4ba61e3cc814f0384.
The fix will be included in TensorFlow 2.10.0. We will also cherrypick this commit on TensorFlow 2.9.1, TensorFlow 2.8.1, and TensorFlow 2.7.2, as these are also affected and still in supported range.
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 Hui Peng from Baidu Security.
Severity
7.0 (High)
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.8.0"
},
{
"fixed": "2.8.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.9.0"
},
{
"fixed": "2.9.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.8.0"
},
{
"fixed": "2.8.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.9.0"
},
{
"fixed": "2.9.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.8.0"
},
{
"fixed": "2.8.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.9.0"
},
{
"fixed": "2.9.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-35939"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2022-09-16T21:04:23Z",
"nvd_published_at": "2022-09-16T20:15:00Z",
"severity": "HIGH"
},
"details": "### Impact\nThe [`ScatterNd`](https://github.com/tensorflow/tensorflow/blob/266558ac4c1f361e9a178ee9d3f0ce2e648ae499/tensorflow/lite/kernels/internal/reference/reference_ops.h#L659-L698) function takes an input argument that determines the indices of of the output tensor. An input index greater than the output tensor or less than zero will either write content at the wrong index or trigger a crash.\n\n### Patches\nWe have patched the issue in GitHub commit [b4d4b4cb019bd7240a52daa4ba61e3cc814f0384](https://github.com/tensorflow/tensorflow/commit/b4d4b4cb019bd7240a52daa4ba61e3cc814f0384).\n\nThe fix will be included in TensorFlow 2.10.0. We will also cherrypick this commit on TensorFlow 2.9.1, TensorFlow 2.8.1, and TensorFlow 2.7.2, as these are also affected and still in supported range.\n\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\n### Attribution\nThis vulnerability has been reported by Hui Peng from Baidu Security.",
"id": "GHSA-ffjm-4qwc-7cmf",
"modified": "2022-09-19T19:56:51Z",
"published": "2022-09-16T21:04:23Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-ffjm-4qwc-7cmf"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-35939"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/commit/b4d4b4cb019bd7240a52daa4ba61e3cc814f0384"
},
{
"type": "PACKAGE",
"url": "https://github.com/tensorflow/tensorflow"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/blob/266558ac4c1f361e9a178ee9d3f0ce2e648ae499/tensorflow/lite/kernels/internal/reference/reference_ops.h#L659-L698"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/releases/tag/v2.10.0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H",
"type": "CVSS_V3"
}
],
"summary": "TensorFlow vulnerable to OOB write in `scatter_nd` in TF Lite"
}
GHSA-FFJX-M5FM-M25W
Vulnerability from github – Published: 2022-05-13 01:23 – Updated: 2022-05-13 01:23
VLAI
Details
An issue was discovered in GNU LibreDWG 0.7 and 0.7.1645. There is a heap-based buffer overflow in the function dwg_decode_eed_data at decode.c for the y dimension.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2019-9770"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-03-14T09:29:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in GNU LibreDWG 0.7 and 0.7.1645. There is a heap-based buffer overflow in the function dwg_decode_eed_data at decode.c for the y dimension.",
"id": "GHSA-ffjx-m5fm-m25w",
"modified": "2022-05-13T01:23:06Z",
"published": "2022-05-13T01:23:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9770"
},
{
"type": "WEB",
"url": "https://github.com/LibreDWG/libredwg/issues/99"
},
{
"type": "WEB",
"url": "https://savannah.gnu.org/bugs/index.php?55893"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00033.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00045.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/107447"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.