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.
16203 vulnerabilities reference this CWE, most recent first.
GHSA-QQJV-33VR-VJWH
Vulnerability from github – Published: 2022-12-30 21:30 – Updated: 2023-01-05 06:30
VLAI
Details
Tenda A15 V15.13.07.13 was discovered to contain a stack overflow via the ssid parameter at /goform/WifiBasicSet.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2022-47119"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-30T21:15:00Z",
"severity": "CRITICAL"
},
"details": "Tenda A15 V15.13.07.13 was discovered to contain a stack overflow via the ssid parameter at /goform/WifiBasicSet.",
"id": "GHSA-qqjv-33vr-vjwh",
"modified": "2023-01-05T06:30:21Z",
"published": "2022-12-30T21:30:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-47119"
},
{
"type": "WEB",
"url": "https://brief-nymphea-813.notion.site/Vul4-A15-bof-WifiBasicSet-ssid-a0ab1bec6d734c0f89b07a4a3867c6ba"
}
],
"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-QQQG-R4H6-VG6H
Vulnerability from github – Published: 2026-08-07 00:31 – Updated: 2026-08-07 00:31
VLAI
Details
A maliciously crafted PDF file, when parsed through Autodesk Revit, can force an Out-of-Bounds Write vulnerability. A malicious actor may leverage this vulnerability to cause a crash, cause data corruption, or execute arbitrary code in the context of the current process.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-8325"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-06T22:18:33Z",
"severity": "HIGH"
},
"details": "A maliciously crafted PDF file, when parsed through Autodesk Revit, can force an Out-of-Bounds Write vulnerability. A malicious actor may leverage this vulnerability to cause a crash, cause data corruption, or execute arbitrary code in the context of the current process.",
"id": "GHSA-qqqg-r4h6-vg6h",
"modified": "2026-08-07T00:31:23Z",
"published": "2026-08-07T00:31:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8325"
},
{
"type": "WEB",
"url": "https://www.autodesk.com/products/autodesk-access/overview"
},
{
"type": "WEB",
"url": "https://www.autodesk.com/trust/security-advisories/adsk-sa-2026-0011"
}
],
"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-QQQQ-CH5X-6HQ4
Vulnerability from github – Published: 2022-05-13 01:04 – Updated: 2022-05-13 01:04
VLAI
Details
VMware ESXi (ESXi 6.5 without patch ESXi650-201707101-SG), Workstation (12.x before 12.5.7) and Fusion (8.x before 8.5.8) contain an out-of-bounds write vulnerability in SVGA device. This issue may allow a guest to execute code on the host.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2017-4924"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-09-15T13:29:00Z",
"severity": "HIGH"
},
"details": "VMware ESXi (ESXi 6.5 without patch ESXi650-201707101-SG), Workstation (12.x before 12.5.7) and Fusion (8.x before 8.5.8) contain an out-of-bounds write vulnerability in SVGA device. This issue may allow a guest to execute code on the host.",
"id": "GHSA-qqqq-ch5x-6hq4",
"modified": "2022-05-13T01:04:01Z",
"published": "2022-05-13T01:04:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-4924"
},
{
"type": "WEB",
"url": "https://0patch.blogspot.com/2017/10/micropatching-hypervisor-with-running.html"
},
{
"type": "WEB",
"url": "https://www.vmware.com/security/advisories/VMSA-2017-0015.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/100843"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1039365"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1039366"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QQR4-7RHM-W46V
Vulnerability from github – Published: 2026-09-22 21:31 – Updated: 2026-09-22 21:31
VLAI
Details
Bridge is 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-2026-75663"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-22T19:16:45Z",
"severity": "HIGH"
},
"details": "Bridge is 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-qqr4-7rhm-w46v",
"modified": "2026-09-22T21:31:24Z",
"published": "2026-09-22T21:31:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-75663"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/bridge/apsb26-148.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-QQR4-8M2R-FV75
Vulnerability from github – Published: 2022-01-28 00:01 – Updated: 2022-02-03 00:00
VLAI
Details
Cesanta MJS v2.20.0 was discovered to contain a heap buffer overflow via snquote at mjs/src/mjs_json.c.
{
"affected": [],
"aliases": [
"CVE-2021-46524"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-01-27T21:15:00Z",
"severity": "HIGH"
},
"details": "Cesanta MJS v2.20.0 was discovered to contain a heap buffer overflow via snquote at mjs/src/mjs_json.c.",
"id": "GHSA-qqr4-8m2r-fv75",
"modified": "2022-02-03T00:00:31Z",
"published": "2022-01-28T00:01:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-46524"
},
{
"type": "WEB",
"url": "https://github.com/cesanta/mjs/issues/192"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-QQRV-C85V-36PC
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-2025-54284"
],
"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-qqrv-c85v-36pc",
"modified": "2025-10-14T21:30:47Z",
"published": "2025-10-14T21:30:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54284"
},
{
"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-QQV7-R77F-8PJV
Vulnerability from github – Published: 2022-05-24 17:22 – Updated: 2022-05-24 17:22
VLAI
Details
Adobe Acrobat and Reader versions 2019.012.20035 and earlier, 2019.012.20035 and earlier, 2017.011.30142 and earlier, 2017.011.30143 and earlier, 2015.006.30497 and earlier, and 2015.006.30498 and earlier have a heap overflow vulnerability. Successful exploitation could lead to arbitrary code execution .
{
"affected": [],
"aliases": [
"CVE-2019-8066"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-07-06T18:15:00Z",
"severity": "MODERATE"
},
"details": "Adobe Acrobat and Reader versions 2019.012.20035 and earlier, 2019.012.20035 and earlier, 2017.011.30142 and earlier, 2017.011.30143 and earlier, 2015.006.30497 and earlier, and 2015.006.30498 and earlier have a heap overflow vulnerability. Successful exploitation could lead to arbitrary code execution .",
"id": "GHSA-qqv7-r77f-8pjv",
"modified": "2022-05-24T17:22:25Z",
"published": "2022-05-24T17:22:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-8066"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb19-41.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-QQVQ-6XGJ-JW8G
Vulnerability from github – Published: 2023-09-28 18:30 – Updated: 2024-02-15 15:02
VLAI
Summary
Electron affected by libvpx's heap buffer overflow in vp8 encoding
Details
Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Severity
8.8 (High)
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "electron"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "22.3.25"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "electron"
},
"ranges": [
{
"events": [
{
"introduced": "24.0.0"
},
{
"fixed": "24.8.5"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "electron"
},
"ranges": [
{
"events": [
{
"introduced": "25.0.0"
},
{
"fixed": "25.8.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "electron"
},
"ranges": [
{
"events": [
{
"introduced": "26.0.0"
},
{
"fixed": "26.2.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "electron"
},
"ranges": [
{
"events": [
{
"introduced": "27.0.0-alpha.1"
},
{
"fixed": "27.0.0-beta.8"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-5217"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2023-10-05T17:31:47Z",
"nvd_published_at": "2023-09-28T16:15:10Z",
"severity": "HIGH"
},
"details": "Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-qqvq-6xgj-jw8g",
"modified": "2024-02-15T15:02:25Z",
"published": "2023-09-28T18:30:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-5217"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/pull/40022"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/pull/40023"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/pull/40024"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/pull/40025"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/pull/40026"
},
{
"type": "WEB",
"url": "https://github.com/webmproject/libvpx/commit/af6dedd715f4307669366944cca6e0417b290282"
},
{
"type": "WEB",
"url": "https://github.com/webmproject/libvpx/commit/3fbd1dca6a4d2dad332a2110d646e4ffef36d590"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BCVSHVX2RFBU3RMCUFSATVQEJUFD4Q63"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CWEJYS5NC7KVFYU3OAMPKQDYN6JQGVK6"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TE7F54W5O5RS4ZMAAC7YK3CZWQXIDSKB"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WTRUIS3564P7ZLM2S2IH4Y4KZ327LI4I"
},
{
"type": "WEB",
"url": "https://pastebin.com/TdkC4pDv"
},
{
"type": "WEB",
"url": "https://security-tracker.debian.org/tracker/CVE-2023-5217"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202310-04"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202401-34"
},
{
"type": "WEB",
"url": "https://stackdiary.com/google-discloses-a-webm-vp8-bug-tracked-as-cve-2023-5217"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT213961"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT213972"
},
{
"type": "WEB",
"url": "https://twitter.com/maddiestone/status/1707163313711497266"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5508"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5509"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5510"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2023-44"
},
{
"type": "WEB",
"url": "https://www.openwall.com/lists/oss-security/2023/09/28/5"
},
{
"type": "WEB",
"url": "https://arstechnica.com/security/2023/09/new-0-day-in-chrome-and-firefox-is-likely-to-plague-other-software"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2241191"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_27.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1486441"
},
{
"type": "PACKAGE",
"url": "https://github.com/electron/electron"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/releases/tag/v22.3.25"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/releases/tag/v24.8.5"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/releases/tag/v25.8.4"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/releases/tag/v26.2.4"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/releases/tag/v27.0.0-beta.8"
},
{
"type": "WEB",
"url": "https://github.com/webmproject/libvpx/releases/tag/v1.13.1"
},
{
"type": "WEB",
"url": "https://github.com/webmproject/libvpx/tags"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00038.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00001.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00015.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4MFWDFJSSIFKWKNOCTQCFUNZWAXUCSS4"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/55YVCZNAVY3Y5E4DWPWMX2SPKZ2E5SOV"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AY642Z6JZODQJE7Z62CFREVUHEGCXGPD"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2023/Oct/12"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2023/Oct/16"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/09/28/5"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/09/28/6"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/09/29/1"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/09/29/11"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/09/29/12"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/09/29/14"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/09/29/2"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/09/29/7"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/09/29/9"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/09/30/1"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/09/30/2"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/09/30/3"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/09/30/4"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/09/30/5"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/10/01/1"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/10/01/2"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/10/01/5"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/10/02/6"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/10/03/11"
}
],
"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"
}
],
"summary": "Electron affected by libvpx\u0027s heap buffer overflow in vp8 encoding"
}
GHSA-QQWR-RXH6-7P7G
Vulnerability from github – Published: 2022-08-02 00:00 – Updated: 2022-08-06 00:00
VLAI
Details
In mailbox, there is a possible out of bounds write due to type confusion. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07032521; Issue ID: ALPS07032521.
Severity
6.7 (Medium)
{
"affected": [],
"aliases": [
"CVE-2022-26430"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-01T14:15:00Z",
"severity": "MODERATE"
},
"details": "In mailbox, there is a possible out of bounds write due to type confusion. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07032521; Issue ID: ALPS07032521.",
"id": "GHSA-qqwr-rxh6-7p7g",
"modified": "2022-08-06T00:00:47Z",
"published": "2022-08-02T00:00:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-26430"
},
{
"type": "WEB",
"url": "https://corp.mediatek.com/product-security-bulletin/August-2022"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QQWW-FQ7F-MVVQ
Vulnerability from github – Published: 2022-07-07 00:00 – Updated: 2022-07-14 00:00
VLAI
Details
In WLAN driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06704526; Issue ID: ALPS06704508.
Severity
6.7 (Medium)
{
"affected": [],
"aliases": [
"CVE-2022-21782"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-07-06T14:15:00Z",
"severity": "MODERATE"
},
"details": "In WLAN driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06704526; Issue ID: ALPS06704508.",
"id": "GHSA-qqww-fq7f-mvvq",
"modified": "2022-07-14T00:00:19Z",
"published": "2022-07-07T00:00:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-21782"
},
{
"type": "WEB",
"url": "https://corp.mediatek.com/product-security-bulletin/July-2022"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/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.