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.
15266 vulnerabilities reference this CWE, most recent first.
GHSA-FCJF-HPCW-4VCC
Vulnerability from github – Published: 2023-03-27 21:30 – Updated: 2023-03-27 21:30
VLAI
Details
Adobe Substance 3D Stager versions 2.0.0 (and earlier) are affected by a Heap-based Buffer Overflow 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-2023-25868"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-27T21:15:00Z",
"severity": "HIGH"
},
"details": "Adobe Substance 3D Stager versions 2.0.0 (and earlier) are affected by a Heap-based Buffer Overflow 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-fcjf-hpcw-4vcc",
"modified": "2023-03-27T21:30:25Z",
"published": "2023-03-27T21:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-25868"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/substance3d_stager/apsb23-22.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-FCP2-RX75-WXGX
Vulnerability from github – Published: 2022-05-24 16:48 – Updated: 2022-10-11 19:00
VLAI
Details
Use after free in Blink in Google Chrome prior to 74.0.3729.108 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2019-5808"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-06-27T17:15:00Z",
"severity": "HIGH"
},
"details": "Use after free in Blink in Google Chrome prior to 74.0.3729.108 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-fcp2-rx75-wxgx",
"modified": "2022-10-11T19:00:36Z",
"published": "2022-05-24T16:48:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-5808"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2019/04/stable-channel-update-for-desktop_23.html"
},
{
"type": "WEB",
"url": "https://crbug.com/947029"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CPM7VPE27DUNJLXM4F5PAAEFFWOEND6X"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FKN4GPMBQ3SDXWB4HL45II5CZ7P2E4AI"
},
{
"type": "WEB",
"url": "https://seclists.org/bugtraq/2019/Aug/19"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201908-18"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2019/dsa-4500"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00085.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-FCPC-PG6W-82XC
Vulnerability from github – Published: 2022-05-24 17:32 – Updated: 2023-01-09 18:30
VLAI
Details
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8, iTunes 12.10.8 for Windows, iCloud for Windows 11.3, iCloud for Windows 7.20. Processing a maliciously crafted image may lead to arbitrary code execution.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2020-9872"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-10-22T18:15:00Z",
"severity": "HIGH"
},
"details": "An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8, iTunes 12.10.8 for Windows, iCloud for Windows 11.3, iCloud for Windows 7.20. Processing a maliciously crafted image may lead to arbitrary code execution.",
"id": "GHSA-fcpc-pg6w-82xc",
"modified": "2023-01-09T18:30:25Z",
"published": "2022-05-24T17:32:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-9872"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT211288"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT211289"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT211290"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT211291"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT211293"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT211294"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT211295"
}
],
"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-FCPW-F2FF-X55P
Vulnerability from github – Published: 2025-09-18 18:30 – Updated: 2025-12-11 15:30
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
NFSD: Protect against send buffer overflow in NFSv2 READ
Since before the git era, NFSD has conserved the number of pages held by each nfsd thread by combining the RPC receive and send buffers into a single array of pages. This works because there are no cases where an operation needs a large RPC Call message and a large RPC Reply at the same time.
Once an RPC Call has been received, svc_process() updates svc_rqst::rq_res to describe the part of rq_pages that can be used for constructing the Reply. This means that the send buffer (rq_res) shrinks when the received RPC record containing the RPC Call is large.
A client can force this shrinkage on TCP by sending a correctly- formed RPC Call header contained in an RPC record that is excessively large. The full maximum payload size cannot be constructed in that case.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-50410"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-18T16:15:44Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: Protect against send buffer overflow in NFSv2 READ\n\nSince before the git era, NFSD has conserved the number of pages\nheld by each nfsd thread by combining the RPC receive and send\nbuffers into a single array of pages. This works because there are\nno cases where an operation needs a large RPC Call message and a\nlarge RPC Reply at the same time.\n\nOnce an RPC Call has been received, svc_process() updates\nsvc_rqst::rq_res to describe the part of rq_pages that can be\nused for constructing the Reply. This means that the send buffer\n(rq_res) shrinks when the received RPC record containing the RPC\nCall is large.\n\nA client can force this shrinkage on TCP by sending a correctly-\nformed RPC Call header contained in an RPC record that is\nexcessively large. The full maximum payload size cannot be\nconstructed in that case.",
"id": "GHSA-fcpw-f2ff-x55p",
"modified": "2025-12-11T15:30:30Z",
"published": "2025-09-18T18:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50410"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1868332032eccbab8c1878a0d918193058c0a905"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2007867c5874134f2271eb276398208070049dd3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2be9331ca6061bc6ea32247266f45b8b21030244"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/401bc1f90874280a80b93f23be33a0e7e2d1f912"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ea4c3eee0fd72fcedaa238556044825639cd3607"
}
],
"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-FCPX-28G7-CMWG
Vulnerability from github – Published: 2022-07-28 00:00 – Updated: 2022-08-04 00:00
VLAI
Details
Heap buffer overflow in DevTools in Google Chrome prior to 102.0.5005.61 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-1876"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-07-27T22:15:00Z",
"severity": "HIGH"
},
"details": "Heap buffer overflow in DevTools in Google Chrome prior to 102.0.5005.61 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-fcpx-28g7-cmwg",
"modified": "2022-08-04T00:00:23Z",
"published": "2022-07-28T00:00:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-1876"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2022/05/stable-channel-update-for-desktop_24.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1313600"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-25"
}
],
"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-FCPX-H44G-VX2X
Vulnerability from github – Published: 2025-05-13 15:32 – Updated: 2025-10-22 00:33
VLAI
Details
A stack-based buffer overflow vulnerability [CWE-121] in Fortinet FortiVoice versions 7.2.0, 7.0.0 through 7.0.6, 6.4.0 through 6.4.10, FortiRecorder versions 7.2.0 through 7.2.3, 7.0.0 through 7.0.5, 6.4.0 through 6.4.5, FortiMail versions 7.6.0 through 7.6.2, 7.4.0 through 7.4.4, 7.2.0 through 7.2.7, 7.0.0 through 7.0.8, FortiNDR versions 7.6.0, 7.4.0 through 7.4.7, 7.2.0 through 7.2.4, 7.0.0 through 7.0.6, FortiCamera versions 2.1.0 through 2.1.3, 2.0 all versions, 1.1 all versions, allows a remote unauthenticated attacker to execute arbitrary code or commands via sending HTTP requests with specially crafted hash cookie.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2025-32756"
],
"database_specific": {
"cwe_ids": [
"CWE-121",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-13T15:15:57Z",
"severity": "CRITICAL"
},
"details": "A stack-based buffer overflow vulnerability [CWE-121] in Fortinet FortiVoice versions 7.2.0, 7.0.0 through 7.0.6, 6.4.0 through 6.4.10, FortiRecorder versions 7.2.0 through 7.2.3, 7.0.0 through 7.0.5, 6.4.0 through 6.4.5, FortiMail versions 7.6.0 through 7.6.2, 7.4.0 through 7.4.4, 7.2.0 through 7.2.7, 7.0.0 through 7.0.8, FortiNDR versions 7.6.0, 7.4.0 through 7.4.7, 7.2.0 through 7.2.4, 7.0.0 through 7.0.6, FortiCamera versions 2.1.0 through 2.1.3, 2.0 all versions, 1.1 all versions, allows a remote unauthenticated attacker to execute arbitrary code or commands via sending HTTP requests with specially crafted hash cookie.",
"id": "GHSA-fcpx-h44g-vx2x",
"modified": "2025-10-22T00:33:18Z",
"published": "2025-05-13T15:32:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-32756"
},
{
"type": "WEB",
"url": "https://fortiguard.fortinet.com/psirt/FG-IR-25-254"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32756"
}
],
"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-FCQH-VH52-5MW9
Vulnerability from github – Published: 2025-10-14 21:30 – Updated: 2025-10-14 21:30
VLAI
Details
Illustrator versions 29.7, 28.7.9 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-2025-54283"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-14T20:15:39Z",
"severity": "HIGH"
},
"details": "Illustrator versions 29.7, 28.7.9 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-fcqh-vh52-5mw9",
"modified": "2025-10-14T21:30:47Z",
"published": "2025-10-14T21:30:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54283"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/illustrator/apsb25-102.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-FCQX-5RP6-C5PJ
Vulnerability from github – Published: 2022-05-24 17:37 – Updated: 2024-03-21 03:33
VLAI
Details
DCTStream::getChars in DCTStream.cc in Poppler 20.12.1 has a heap-based buffer overflow via a crafted PDF document.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2020-35702"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-12-25T02:15:00Z",
"severity": "HIGH"
},
"details": "DCTStream::getChars in DCTStream.cc in Poppler 20.12.1 has a heap-based buffer overflow via a crafted PDF document.",
"id": "GHSA-fcqx-5rp6-c5pj",
"modified": "2024-03-21T03:33:56Z",
"published": "2022-05-24T17:37:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35702"
},
{
"type": "WEB",
"url": "https://gitlab.freedesktop.org/poppler/poppler/-/issues/1011"
}
],
"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-FCRM-7Q5R-W4RW
Vulnerability from github – Published: 2022-05-17 00:25 – Updated: 2025-11-17 21:31
VLAI
Details
Heap-based buffer overflow in Adobe Flash Player before 13.0.0.296 and 14.x through 18.x before 18.0.0.194 on Windows and OS X and before 11.2.202.468 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in June 2015.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2015-3113"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2015-06-23T21:59:00Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Adobe Flash Player before 13.0.0.296 and 14.x through 18.x before 18.0.0.194 on Windows and OS X and before 11.2.202.468 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in June 2015.",
"id": "GHSA-fcrm-7q5r-w4rw",
"modified": "2025-11-17T21:31:16Z",
"published": "2022-05-17T00:25:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2015-3113"
},
{
"type": "WEB",
"url": "https://github.com/cisagov/vulnrichment/issues/196"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1235036"
},
{
"type": "WEB",
"url": "https://bugzilla.suse.com/show_bug.cgi?id=935701"
},
{
"type": "WEB",
"url": "https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04952467"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/flash-player/apsb15-14.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201507-13"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-3113"
},
{
"type": "WEB",
"url": "https://www.suse.com/security/cve/CVE-2015-3113.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00020.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00025.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00002.html"
},
{
"type": "WEB",
"url": "http://marc.info/?l=bugtraq\u0026m=144050155601375\u0026w=2"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2015-1184.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/75371"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1032696"
}
],
"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-FCRQ-3Q8J-4J94
Vulnerability from github – Published: 2022-09-14 00:00 – Updated: 2022-09-14 00:00
VLAI
Details
A vulnerability has been identified in Parasolid V33.1 (All versions < V33.1.262), Parasolid V33.1 (All versions >= V33.1.262 < V33.1.263), Parasolid V34.0 (All versions < V34.0.252), Parasolid V34.1 (All versions < V34.1.242), Parasolid V35.0 (All versions < V35.0.161), Parasolid V35.0 (All versions >= V35.0.161 < V35.0.164), Simcenter Femap V2022.1 (All versions < V2022.1.3), Simcenter Femap V2022.2 (All versions < V2022.2.2). The affected application contains an out of bounds write past the end of an allocated buffer while parsing specially crafted X_T files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-17736)
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-39151"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-09-13T10:15:00Z",
"severity": "HIGH"
},
"details": "A vulnerability has been identified in Parasolid V33.1 (All versions \u003c V33.1.262), Parasolid V33.1 (All versions \u003e= V33.1.262 \u003c V33.1.263), Parasolid V34.0 (All versions \u003c V34.0.252), Parasolid V34.1 (All versions \u003c V34.1.242), Parasolid V35.0 (All versions \u003c V35.0.161), Parasolid V35.0 (All versions \u003e= V35.0.161 \u003c V35.0.164), Simcenter Femap V2022.1 (All versions \u003c V2022.1.3), Simcenter Femap V2022.2 (All versions \u003c V2022.2.2). The affected application contains an out of bounds write past the end of an allocated buffer while parsing specially crafted X_T files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-17736)",
"id": "GHSA-fcrq-3q8j-4j94",
"modified": "2022-09-14T00:00:50Z",
"published": "2022-09-14T00:00:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-39151"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-518824.pdf"
}
],
"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.