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.
15137 vulnerabilities reference this CWE, most recent first.
GHSA-V59V-952X-H9HM
Vulnerability from github – Published: 2022-05-13 01:16 – Updated: 2022-05-13 01:16
VLAI
Details
A Stack-based Buffer Overflow issue was discovered in Delta Electronics Delta Industrial Automation DOPSoft, Version 4.00.01 or prior. Stack-based buffer overflow vulnerabilities caused by processing specially crafted .dop or .dpb files may allow an attacker to remotely execute arbitrary code.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2018-5476"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-03-15T23:29:00Z",
"severity": "HIGH"
},
"details": "A Stack-based Buffer Overflow issue was discovered in Delta Electronics Delta Industrial Automation DOPSoft, Version 4.00.01 or prior. Stack-based buffer overflow vulnerabilities caused by processing specially crafted .dop or .dpb files may allow an attacker to remotely execute arbitrary code.",
"id": "GHSA-v59v-952x-h9hm",
"modified": "2022-05-13T01:16:13Z",
"published": "2022-05-13T01:16:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-5476"
},
{
"type": "WEB",
"url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-060-03"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/103195"
}
],
"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-V5C4-XFXJ-8X84
Vulnerability from github – Published: 2022-05-24 16:46 – Updated: 2024-04-04 00:50
VLAI
Details
The CalDAV feature in httpd in Cyrus IMAP 2.5.x through 2.5.12 and 3.0.x through 3.0.9 allows remote attackers to execute arbitrary code via a crafted HTTP PUT operation for an event with a long iCalendar property name.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2019-11356"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-06-03T20:29:00Z",
"severity": "CRITICAL"
},
"details": "The CalDAV feature in httpd in Cyrus IMAP 2.5.x through 2.5.12 and 3.0.x through 3.0.9 allows remote attackers to execute arbitrary code via a crafted HTTP PUT operation for an event with a long iCalendar property name.",
"id": "GHSA-v5c4-xfxj-8x84",
"modified": "2024-04-04T00:50:48Z",
"published": "2022-05-24T16:46:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11356"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:1771"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGO43JS7IFDNITHXOOHOP6JHRKRDIYY6"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PICSZDC3UGEUZ27VXGGM6OFI67D3KKLZ"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IGO43JS7IFDNITHXOOHOP6JHRKRDIYY6"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PICSZDC3UGEUZ27VXGGM6OFI67D3KKLZ"
},
{
"type": "WEB",
"url": "https://seclists.org/bugtraq/2019/Jun/9"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4566-1"
},
{
"type": "WEB",
"url": "https://www.cyrusimap.org/imap/download/release-notes/2.5/index.html"
},
{
"type": "WEB",
"url": "https://www.cyrusimap.org/imap/download/release-notes/2.5/x/2.5.13.html"
},
{
"type": "WEB",
"url": "https://www.cyrusimap.org/imap/download/release-notes/3.0/index.html"
},
{
"type": "WEB",
"url": "https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.10.html"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2019/dsa-4458"
}
],
"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-V5CF-8VGJ-92RR
Vulnerability from github – Published: 2022-05-24 19:06 – Updated: 2023-10-03 15:30
VLAI
Details
This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop 16.6.3.84. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DXF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-13309.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2021-31509"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-06-29T15:15:00Z",
"severity": "HIGH"
},
"details": "This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop 16.6.3.84. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DXF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-13309.",
"id": "GHSA-v5cf-8vgj-92rr",
"modified": "2023-10-03T15:30:27Z",
"published": "2022-05-24T19:06:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-31509"
},
{
"type": "WEB",
"url": "https://www.cvedetails.com/vulnerability-list/vendor_id-2032/product_id-96672/Opentext-Brava-Desktop.html?page=1\u0026opec=1\u0026order=1\u0026trc=35\u0026sha=37f4ed0596f8ccacca7d571f22a38c97b0f19f4c"
},
{
"type": "WEB",
"url": "https://www.opentext.com/products/brava"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-687"
}
],
"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-V5F6-RPXQ-XVG8
Vulnerability from github – Published: 2023-11-07 21:30 – Updated: 2023-11-07 21:30
VLAI
Details
A design flaw was found in Samba's DirSync control implementation, which exposes passwords and secrets in Active Directory to privileged users and Read-Only Domain Controllers (RODCs). This flaw allows RODCs and users possessing the GET_CHANGES right to access all attributes, including sensitive secrets and passwords. Even in a default setup, RODC DC accounts, which should only replicate some passwords, can gain access to all domain secrets, including the vital krbtgt, effectively eliminating the RODC / DC distinction. Furthermore, the vulnerability fails to account for error conditions (fail open), like out-of-memory situations, potentially granting access to secret attributes, even under low-privileged attacker influence.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2023-4154"
],
"database_specific": {
"cwe_ids": [
"CWE-200",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-11-07T20:15:08Z",
"severity": "HIGH"
},
"details": "A design flaw was found in Samba\u0027s DirSync control implementation, which exposes passwords and secrets in Active Directory to privileged users and Read-Only Domain Controllers (RODCs). This flaw allows RODCs and users possessing the GET_CHANGES right to access all attributes, including sensitive secrets and passwords. Even in a default setup, RODC DC accounts, which should only replicate some passwords, can gain access to all domain secrets, including the vital krbtgt, effectively eliminating the RODC / DC distinction. Furthermore, the vulnerability fails to account for error conditions (fail open), like out-of-memory situations, potentially granting access to secret attributes, even under low-privileged attacker influence.",
"id": "GHSA-v5f6-rpxq-xvg8",
"modified": "2023-11-07T21:30:24Z",
"published": "2023-11-07T21:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4154"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2023-4154"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2241883"
},
{
"type": "WEB",
"url": "https://bugzilla.samba.org/show_bug.cgi?id=15424"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20231124-0002"
},
{
"type": "WEB",
"url": "https://www.samba.org/samba/security/CVE-2023-4154.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-V5FC-CQRV-W647
Vulnerability from github – Published: 2025-05-06 09:31 – Updated: 2025-05-06 09:31
VLAI
Details
Memory corruption may occur when invoking IOCTL calls from userspace to the camera kernel driver to dump request information, due to a missing memory requirement check.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-45579"
],
"database_specific": {
"cwe_ids": [
"CWE-20",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-06T09:15:20Z",
"severity": "HIGH"
},
"details": "Memory corruption may occur when invoking IOCTL calls from userspace to the camera kernel driver to dump request information, due to a missing memory requirement check.",
"id": "GHSA-v5fc-cqrv-w647",
"modified": "2025-05-06T09:31:33Z",
"published": "2025-05-06T09:31:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-45579"
},
{
"type": "WEB",
"url": "https://docs.qualcomm.com/product/publicresources/securitybulletin/may-2025-bulletin.html"
}
],
"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-V5FR-G2CW-6C7V
Vulnerability from github – Published: 2026-03-21 15:33 – Updated: 2026-03-21 15:33
VLAI
Details
Lyric Maker 2.0.1.0 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Title field. Attackers can paste a 5000-byte buffer into the Title input field and save the file to trigger a denial of service condition.
Severity
6.2 (Medium)
{
"affected": [],
"aliases": [
"CVE-2019-25561"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-21T13:16:19Z",
"severity": "MODERATE"
},
"details": "Lyric Maker 2.0.1.0 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Title field. Attackers can paste a 5000-byte buffer into the Title input field and save the file to trigger a denial of service condition.",
"id": "GHSA-v5fr-g2cw-6c7v",
"modified": "2026-03-21T15:33:23Z",
"published": "2026-03-21T15:33:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-25561"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/46817"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/lyric-maker-denial-of-service-via-buffer-overflow"
},
{
"type": "WEB",
"url": "http://www.jetaudio.com"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-V5FW-Q4PF-8P2H
Vulnerability from github – Published: 2023-07-21 21:30 – Updated: 2026-07-01 17:50
VLAI
Summary
Duplicate Advisory: Open Babel has out-of-bounds write in Gaussian translationVectors[]
Details
Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-jg3h-pv7c-4f9c. This link is maintained to preserve external references.
Original Description
Multiple out-of-bounds write vulnerabilities exist in the translationVectors parsing functionality in multiple supported formats of Open Babel 3.1.1 and master commit 530dbfa3. A specially-crafted malformed file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.This vulnerability affects the MSI file format
Severity
9.8 (Critical)
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "openbabel"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.2.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2026-07-01T17:50:45Z",
"nvd_published_at": "2023-07-21T21:15:10Z",
"severity": "CRITICAL"
},
"details": "## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-jg3h-pv7c-4f9c. This link is maintained to preserve external references.\n\n## Original Description\nMultiple out-of-bounds write vulnerabilities exist in the translationVectors parsing functionality in multiple supported formats of Open Babel 3.1.1 and master commit 530dbfa3. A specially-crafted malformed file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.This vulnerability affects the MSI file format",
"id": "GHSA-v5fw-q4pf-8p2h",
"modified": "2026-07-01T17:50:45Z",
"published": "2023-07-21T21:30:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-46291"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2022-1666"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1666"
}
],
"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"
}
],
"summary": "Duplicate Advisory: Open Babel has out-of-bounds write in Gaussian translationVectors[]",
"withdrawn": "2026-07-01T17:50:45Z"
}
GHSA-V5FX-4J43-2WJG
Vulnerability from github – Published: 2022-05-13 01:01 – Updated: 2025-04-20 03:31
VLAI
Details
An exploitable heap write out of bounds vulnerability exists in the decoding of BPG images in Libbpg library. A crafted BPG image decoded by libbpg can cause an integer underflow vulnerability causing an out of bounds heap write leading to remote code execution. This vulnerability can be triggered via attempting to decode a crafted BPG image using Libbpg.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2016-8710"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-01-26T21:59:00Z",
"severity": "HIGH"
},
"details": "An exploitable heap write out of bounds vulnerability exists in the decoding of BPG images in Libbpg library. A crafted BPG image decoded by libbpg can cause an integer underflow vulnerability causing an out of bounds heap write leading to remote code execution. This vulnerability can be triggered via attempting to decode a crafted BPG image using Libbpg.",
"id": "GHSA-v5fx-4j43-2wjg",
"modified": "2025-04-20T03:31:34Z",
"published": "2022-05-13T01:01:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-8710"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/95740"
},
{
"type": "WEB",
"url": "http://www.talosintelligence.com/reports/TALOS-2016-0223"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-V5G4-WHQH-4265
Vulnerability from github – Published: 2022-05-24 19:02 – Updated: 2022-05-24 19:02
VLAI
Details
A vulnerability has been identified in SIMATIC HMI Comfort Panels 1st Generation (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI KTP Mobile Panels (All versions < V16 Update 4). Specially crafted packets sent to port 161/udp can cause the SNMP service of affected devices to crash. A manual restart of the device is required to resume operation of the service.
{
"affected": [],
"aliases": [
"CVE-2019-19276"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-05-12T14:15:00Z",
"severity": "MODERATE"
},
"details": "A vulnerability has been identified in SIMATIC HMI Comfort Panels 1st Generation (incl. SIPLUS variants) (All versions \u003c V16 Update 4), SIMATIC HMI KTP Mobile Panels (All versions \u003c V16 Update 4). Specially crafted packets sent to port 161/udp can cause the SNMP service of affected devices to crash. A manual restart of the device is required to resume operation of the service.",
"id": "GHSA-v5g4-whqh-4265",
"modified": "2022-05-24T19:02:16Z",
"published": "2022-05-24T19:02:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-19276"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-594364.pdf"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-V5G8-2Q7F-C524
Vulnerability from github – Published: 2026-02-06 12:30 – Updated: 2026-02-06 12:30
VLAI
Details
A security vulnerability has been detected in happyfish100 libfastcommon up to 1.0.84. Affected by this vulnerability is the function base64_decode of the file src/base64.c. The manipulation leads to stack-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. The identifier of the patch is 82f66af3e252e3e137dba0c3891570f085e79adf. Applying a patch is the recommended action to fix this issue.
Severity
{
"affected": [],
"aliases": [
"CVE-2026-2016"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-06T12:16:26Z",
"severity": "MODERATE"
},
"details": "A security vulnerability has been detected in happyfish100 libfastcommon up to 1.0.84. Affected by this vulnerability is the function base64_decode of the file src/base64.c. The manipulation leads to stack-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. The identifier of the patch is 82f66af3e252e3e137dba0c3891570f085e79adf. Applying a patch is the recommended action to fix this issue.",
"id": "GHSA-v5g8-2q7f-c524",
"modified": "2026-02-06T12:30:26Z",
"published": "2026-02-06T12:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2016"
},
{
"type": "WEB",
"url": "https://github.com/happyfish100/libfastcommon/issues/55"
},
{
"type": "WEB",
"url": "https://github.com/happyfish100/libfastcommon/issues/55#issue-3836362577"
},
{
"type": "WEB",
"url": "https://github.com/happyfish100/libfastcommon/issues/55#issuecomment-3776757848"
},
{
"type": "WEB",
"url": "https://github.com/happyfish100/libfastcommon/commit/82f66af3e252e3e137dba0c3891570f085e79adf"
},
{
"type": "WEB",
"url": "https://github.com/happyfish100/libfastcommon"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.344598"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.344598"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.743873"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
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.