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.
15380 vulnerabilities reference this CWE, most recent first.
GHSA-63VH-QFJC-GPW5
Vulnerability from github – Published: 2024-10-21 03:30 – Updated: 2024-10-21 15:32
VLAI
Details
Stack-based buffer overflow vulnerability exists in WAB-I1750-PS and WAB-S1167-PS. By processing a specially crafted HTTP request, arbitrary code may be executed.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-43689"
],
"database_specific": {
"cwe_ids": [
"CWE-121",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-21T02:15:02Z",
"severity": "HIGH"
},
"details": "Stack-based buffer overflow vulnerability exists in WAB-I1750-PS and WAB-S1167-PS. By processing a specially crafted HTTP request, arbitrary code may be executed.",
"id": "GHSA-63vh-qfjc-gpw5",
"modified": "2024-10-21T15:32:26Z",
"published": "2024-10-21T03:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43689"
},
{
"type": "WEB",
"url": "https://jvn.jp/en/jp/JVN24885537"
},
{
"type": "WEB",
"url": "https://www.elecom.co.jp/news/security/20240827-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-63W3-GXFF-MVW4
Vulnerability from github – Published: 2023-09-07 15:30 – Updated: 2024-04-04 07:33
VLAI
Details
Adobe Illustrator versions 26.0.2 (and earlier) and 25.4.5 (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-2022-30641"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-09-07T14:15:10Z",
"severity": "HIGH"
},
"details": "Adobe Illustrator versions 26.0.2 (and earlier) and 25.4.5 (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-63w3-gxff-mvw4",
"modified": "2024-04-04T07:33:12Z",
"published": "2023-09-07T15:30:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-30641"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/illustrator/apsb22-26.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-63WF-289M-VGW6
Vulnerability from github – Published: 2022-05-13 01:19 – Updated: 2022-05-13 01:19
VLAI
Details
An issue was discovered in mgetty before 1.2.1. In contrib/next-login/login.c, the command-line parameter username is passed unsanitized to strcpy(), which can cause a stack-based buffer overflow.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2018-16743"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-09-13T16:29:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in mgetty before 1.2.1. In contrib/next-login/login.c, the command-line parameter username is passed unsanitized to strcpy(), which can cause a stack-based buffer overflow.",
"id": "GHSA-63wf-289m-vgw6",
"modified": "2022-05-13T01:19:17Z",
"published": "2022-05-13T01:19:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16743"
},
{
"type": "WEB",
"url": "https://www.x41-dsec.de/lab/advisories/x41-2018-007-mgetty"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-63WV-J984-JCHP
Vulnerability from github – Published: 2023-03-01 21:30 – Updated: 2023-03-04 06:30
VLAI
Details
Jensen of Scandinavia Eagle 1200AC V15.03.06.33_en was discovered to contain a stack overflow via the wepkey parameter at /goform/WifiBasicSet.
Severity
6.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-24130"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-01T20:15:00Z",
"severity": "MODERATE"
},
"details": "Jensen of Scandinavia Eagle 1200AC V15.03.06.33_en was discovered to contain a stack overflow via the wepkey parameter at /goform/WifiBasicSet.",
"id": "GHSA-63wv-j984-jchp",
"modified": "2023-03-04T06:30:22Z",
"published": "2023-03-01T21:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-24130"
},
{
"type": "WEB",
"url": "https://oxnan.com/posts/WifiBasic_wepkey_DoS"
},
{
"type": "WEB",
"url": "http://eagle.com"
},
{
"type": "WEB",
"url": "http://jensen.com"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-63X5-XM57-F2CW
Vulnerability from github – Published: 2024-06-13 21:30 – Updated: 2024-06-13 21:30
VLAI
Details
Deep Sea Electronics DSE855 Multipart Value Handling Stack-Based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Deep Sea Electronics DSE855 devices. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of multipart form variables. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-23172.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-5950"
],
"database_specific": {
"cwe_ids": [
"CWE-121",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-13T20:15:16Z",
"severity": "HIGH"
},
"details": "Deep Sea Electronics DSE855 Multipart Value Handling Stack-Based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Deep Sea Electronics DSE855 devices. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the handling of multipart form variables. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-23172.",
"id": "GHSA-63x5-xm57-f2cw",
"modified": "2024-06-13T21:30:54Z",
"published": "2024-06-13T21:30:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-5950"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-674"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-63XM-2248-QGHG
Vulnerability from github – Published: 2022-06-17 00:01 – Updated: 2022-06-28 00:00
VLAI
Details
A maliciously crafted TIF file in Autodesk 3ds Max 2022 and 2021 can be used to write beyond the allocated buffer while parsing TIF files. This vulnerability in conjunction with other vulnerabilities could lead to arbitrary code execution.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-27532"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-06-16T16:15:00Z",
"severity": "HIGH"
},
"details": "A maliciously crafted TIF file in Autodesk 3ds Max 2022 and 2021 can be used to write beyond the allocated buffer while parsing TIF files. This vulnerability in conjunction with other vulnerabilities could lead to arbitrary code execution.",
"id": "GHSA-63xm-2248-qghg",
"modified": "2022-06-28T00:00:48Z",
"published": "2022-06-17T00:01:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27532"
},
{
"type": "WEB",
"url": "https://www.autodesk.com/trust/security-advisories/adsk-sa-2022-0010"
}
],
"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-63XM-RX5P-XVQR
Vulnerability from github – Published: 2020-09-25 18:28 – Updated: 2024-10-28 20:21
VLAI
Summary
Heap buffer overflow in Tensorflow
Details
Impact
The implementation of SparseFillEmptyRowsGrad uses a double indexing pattern:
https://github.com/tensorflow/tensorflow/blob/0e68f4d3295eb0281a517c3662f6698992b7b2cf/tensorflow/core/kernels/sparse_fill_empty_rows_op.cc#L263-L269
It is possible for reverse_index_map(i) to be an index outside of bounds of grad_values, thus resulting in a heap buffer overflow.
Patches
We have patched the issue in 390611e0d45c5793c7066110af37c8514e6a6c54 and will release a patch release for all affected versions.
We recommend users to upgrade to TensorFlow 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.
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": "0"
},
{
"fixed": "1.15.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.0.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.1.0"
},
{
"fixed": "2.1.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.2.0"
},
{
"fixed": "2.2.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.2.0"
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.3.0"
},
{
"fixed": "2.3.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.3.0"
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.15.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.0.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.1.0"
},
{
"fixed": "2.1.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.2.0"
},
{
"fixed": "2.2.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.2.0"
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.3.0"
},
{
"fixed": "2.3.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.3.0"
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.15.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.0.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.1.0"
},
{
"fixed": "2.1.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.2.0"
},
{
"fixed": "2.2.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.2.0"
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.3.0"
},
{
"fixed": "2.3.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.3.0"
]
}
],
"aliases": [
"CVE-2020-15195"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-122",
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2020-09-25T17:15:00Z",
"nvd_published_at": "2020-09-25T19:15:00Z",
"severity": "MODERATE"
},
"details": "### Impact\nThe implementation of `SparseFillEmptyRowsGrad` uses a double indexing pattern:\nhttps://github.com/tensorflow/tensorflow/blob/0e68f4d3295eb0281a517c3662f6698992b7b2cf/tensorflow/core/kernels/sparse_fill_empty_rows_op.cc#L263-L269\n\nIt is possible for `reverse_index_map(i)` to be an index outside of bounds of `grad_values`, thus resulting in a heap buffer overflow.\n\n### Patches\nWe have patched the issue in 390611e0d45c5793c7066110af37c8514e6a6c54 and will release a patch release for all affected versions.\n\nWe recommend users to upgrade to TensorFlow 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.\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-63xm-rx5p-xvqr",
"modified": "2024-10-28T20:21:02Z",
"published": "2020-09-25T18:28:29Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-63xm-rx5p-xvqr"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-15195"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/commit/390611e0d45c5793c7066110af37c8514e6a6c54"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2020-275.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2020-310.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2020-118.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/tensorflow/tensorflow"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00065.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H",
"type": "CVSS_V4"
}
],
"summary": "Heap buffer overflow in Tensorflow"
}
GHSA-6422-RQXX-VRCJ
Vulnerability from github – Published: 2022-05-24 16:53 – Updated: 2022-06-17 00:01
VLAI
Details
Wind River VxWorks 6.9 and vx7 has a Buffer Overflow in the TCP component (issue 2 of 4). This is an IPNET security vulnerability: TCP Urgent Pointer state confusion caused by a malformed TCP AO option.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2019-12260"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-120",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-08-09T21:15:00Z",
"severity": "CRITICAL"
},
"details": "Wind River VxWorks 6.9 and vx7 has a Buffer Overflow in the TCP component (issue 2 of 4). This is an IPNET security vulnerability: TCP Urgent Pointer state confusion caused by a malformed TCP AO option.",
"id": "GHSA-6422-rqxx-vrcj",
"modified": "2022-06-17T00:01:24Z",
"published": "2022-05-24T16:53:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-12260"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-189842.pdf"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-352504.pdf"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-632562.pdf"
},
{
"type": "WEB",
"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0009"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20190802-0001"
},
{
"type": "WEB",
"url": "https://support.f5.com/csp/article/K41190253"
},
{
"type": "WEB",
"url": "https://support2.windriver.com/index.php?page=cve\u0026on=view\u0026id=CVE-2019-12260"
},
{
"type": "WEB",
"url": "https://support2.windriver.com/index.php?page=security-notices"
},
{
"type": "WEB",
"url": "https://www.oracle.com//security-alerts/cpujul2021.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
},
{
"type": "WEB",
"url": "https://www.windriver.com/security/announcements/tcp-ip-network-stack-ipnet-urgent11"
}
],
"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-642C-46J5-RHCM
Vulnerability from github – Published: 2026-03-09 06:31 – Updated: 2026-03-09 06:31
VLAI
Details
Delta Electronics COMMGR2 has
Stack-based Buffer Overflow vulnerability.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2026-3630"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-09T04:15:58Z",
"severity": "CRITICAL"
},
"details": "Delta Electronics COMMGR2 has \n\nStack-based Buffer Overflow vulnerability.",
"id": "GHSA-642c-46j5-rhcm",
"modified": "2026-03-09T06:31:13Z",
"published": "2026-03-09T06:31:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3630"
},
{
"type": "WEB",
"url": "https://filecenter.deltaww.com/news/download/doc/Delta-PCSA-2026-00005_COMMGR%202%20Multiple%20Vulnerabilities%20(CVE-2026-3630,%20CVE-2026-3631).pdf"
}
],
"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-642J-4572-2PMC
Vulnerability from github – Published: 2024-09-11 18:31 – Updated: 2024-09-11 18:31
VLAI
Details
Audition versions 24.4.1, 23.6.6 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-2024-39378"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-11T16:15:05Z",
"severity": "HIGH"
},
"details": "Audition versions 24.4.1, 23.6.6 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-642j-4572-2pmc",
"modified": "2024-09-11T18:31:03Z",
"published": "2024-09-11T18:31:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39378"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/audition/apsb24-54.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"
}
]
}
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.