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.
15108 vulnerabilities reference this CWE, most recent first.
GHSA-WW97-C23F-XWW5
Vulnerability from github – Published: 2023-10-11 18:30 – Updated: 2025-11-04 21:30
VLAI
Details
Two heap-based buffer overflow vulnerabilities exist in the httpd manage_post functionality of Yifan YF325 v1.0_20221108. A specially crafted network request can lead to a heap buffer overflow. An attacker can send a network request to trigger these vulnerabilities.This integer overflow result is used as argument for the realloc function.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2023-35966"
],
"database_specific": {
"cwe_ids": [
"CWE-190",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-10-11T16:15:13Z",
"severity": "CRITICAL"
},
"details": "Two heap-based buffer overflow vulnerabilities exist in the httpd manage_post functionality of Yifan YF325 v1.0_20221108. A specially crafted network request can lead to a heap buffer overflow. An attacker can send a network request to trigger these vulnerabilities.This integer overflow result is used as argument for the realloc function.",
"id": "GHSA-ww97-c23f-xww5",
"modified": "2025-11-04T21:30:44Z",
"published": "2023-10-11T18:30:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-35966"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1787"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1787"
}
],
"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-WW98-5GRX-6R2F
Vulnerability from github – Published: 2025-07-30 00:32 – Updated: 2025-11-03 21:34
VLAI
Details
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.6. An app may be able to cause unexpected system termination.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2025-43237"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-30T00:15:35Z",
"severity": "CRITICAL"
},
"details": "An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.6. An app may be able to cause unexpected system termination.",
"id": "GHSA-ww98-5grx-6r2f",
"modified": "2025-11-03T21:34:15Z",
"published": "2025-07-30T00:32:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-43237"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/124149"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2025/Jul/32"
}
],
"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-WW9V-392G-MW7P
Vulnerability from github – Published: 2023-03-24 21:30 – Updated: 2023-03-30 03:30
VLAI
Details
In createTransmitFollowupRequest of nan.cpp, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-261857623References: N/A
Severity
6.7 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-21076"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-24T20:15:00Z",
"severity": "MODERATE"
},
"details": "In createTransmitFollowupRequest of nan.cpp, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-261857623References: N/A",
"id": "GHSA-ww9v-392g-mw7p",
"modified": "2023-03-30T03:30:39Z",
"published": "2023-03-24T21:30:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-21076"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/pixel/2023-03-01"
}
],
"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-WWC5-7R8X-52GG
Vulnerability from github – Published: 2026-06-25 09:31 – Updated: 2026-06-30 03:37
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
USB: serial: kl5kusb105: fix bulk-out buffer overflow
klsi_105_prepare_write_buffer() is called by the generic write path with the bulk-out buffer and its size (bulk_out_size, 64 bytes). It stores a two-byte length header at the start of the buffer and copies the payload from the write fifo starting at buf + KLSI_HDR_LEN, but passes the full buffer size as the number of bytes to copy:
count = kfifo_out_locked(&port->write_fifo, buf + KLSI_HDR_LEN, size, &port->lock);
When the fifo holds at least size bytes, size bytes are copied starting two bytes into the size-byte buffer, writing KLSI_HDR_LEN bytes past its end. Copy at most size - KLSI_HDR_LEN bytes instead, leaving room for the header as safe_serial already does.
Writing bulk_out_size or more bytes to the tty triggers a slab out-of-bounds write, observed with KASAN by emulating the device with dummy_hcd and raw-gadget:
BUG: KASAN: slab-out-of-bounds in kfifo_copy_out+0x83/0xc0 Write of size 64 at addr ffff888112c62202 by task python3 kfifo_copy_out klsi_105_prepare_write_buffer [kl5kusb105] usb_serial_generic_write_start [usbserial] Allocated by task 139: usb_serial_probe [usbserial] The buggy address is located 2 bytes inside of allocated 64-byte region
The out-of-bounds write no longer occurs with this change applied.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-53194"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-25T09:16:36Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: serial: kl5kusb105: fix bulk-out buffer overflow\n\nklsi_105_prepare_write_buffer() is called by the generic write path\nwith the bulk-out buffer and its size (bulk_out_size, 64 bytes). It\nstores a two-byte length header at the start of the buffer and copies\nthe payload from the write fifo starting at buf + KLSI_HDR_LEN, but\npasses the full buffer size as the number of bytes to copy:\n\n count = kfifo_out_locked(\u0026port-\u003ewrite_fifo, buf + KLSI_HDR_LEN,\n size, \u0026port-\u003elock);\n\nWhen the fifo holds at least size bytes, size bytes are copied starting\ntwo bytes into the size-byte buffer, writing KLSI_HDR_LEN bytes past its\nend. Copy at most size - KLSI_HDR_LEN bytes instead, leaving room for\nthe header as safe_serial already does.\n\nWriting bulk_out_size or more bytes to the tty triggers a slab\nout-of-bounds write, observed with KASAN by emulating the device with\ndummy_hcd and raw-gadget:\n\n BUG: KASAN: slab-out-of-bounds in kfifo_copy_out+0x83/0xc0\n Write of size 64 at addr ffff888112c62202 by task python3\n kfifo_copy_out\n klsi_105_prepare_write_buffer [kl5kusb105]\n usb_serial_generic_write_start [usbserial]\n Allocated by task 139:\n usb_serial_probe [usbserial]\n The buggy address is located 2 bytes inside of allocated 64-byte region\n\nThe out-of-bounds write no longer occurs with this change applied.",
"id": "GHSA-wwc5-7r8x-52gg",
"modified": "2026-06-30T03:37:13Z",
"published": "2026-06-25T09:31:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53194"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-53194"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492703"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0a57320f71941d4e0b1307453c9a1f0939afe666"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/14147b7963685957839c76ba8094924e22777d79"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/372f33ebed747d91870f57c0a2e62884a870bffa"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/60af1fd82983c26604102e63a3fcc822c186cceb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/70d86e355c564b5510fde61361df014f5476c83e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/96d47e40bf9db4a9efd5c8fb53287a508d165f14"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a1288cd700f721c1a119c4f1e8efa234e59caada"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bde742b076cbe26ecc89c8c68c76ae076a524d02"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53194.json"
}
],
"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-WWCC-3XPQ-5GJ8
Vulnerability from github – Published: 2022-05-13 01:26 – Updated: 2022-05-13 01:26
VLAI
Details
Heap-based buffer overflow in the Vorbis decoder in Google Chrome before 15.0.874.120 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted stream.
{
"affected": [],
"aliases": [
"CVE-2011-3895"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2011-11-11T11:55:00Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in the Vorbis decoder in Google Chrome before 15.0.874.120 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted stream.",
"id": "GHSA-wwcc-3xpq-5gj8",
"modified": "2022-05-13T01:26:54Z",
"published": "2022-05-13T01:26:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-3895"
},
{
"type": "WEB",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13551"
},
{
"type": "WEB",
"url": "http://code.google.com/p/chromium/issues/detail?id=101458"
},
{
"type": "WEB",
"url": "http://googlechromereleases.blogspot.com/2011/11/stable-channel-update.html"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/46933"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/49089"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2012/dsa-2471"
},
{
"type": "WEB",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2012:074"
},
{
"type": "WEB",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2012:075"
},
{
"type": "WEB",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2012:076"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-WWFQ-HCPH-Q6FG
Vulnerability from github – Published: 2022-10-14 19:00 – Updated: 2022-10-17 19:00
VLAI
Details
OpenHarmony-v3.1.2 and prior versions, 3.0.6 and prior versions have an Out-of-bound memory read and write vulnerability in /dev/mmz_userdev device driver. The impact depends on the privileges of the attacker. The unprivileged process run on the device could read out-of-bound memory leading sensitive to information disclosure. The processes with system user UID run on the device would be able to write out-of-bound memory which could lead to unspecified memory corruption.
Severity
4.4 (Medium)
{
"affected": [],
"aliases": [
"CVE-2022-41686"
],
"database_specific": {
"cwe_ids": [
"CWE-125",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-10-14T15:16:00Z",
"severity": "MODERATE"
},
"details": "OpenHarmony-v3.1.2 and prior versions, 3.0.6 and prior versions have an Out-of-bound memory read and write vulnerability in /dev/mmz_userdev device driver. The impact depends on the privileges of the attacker. The unprivileged process run on the device could read out-of-bound memory leading sensitive to information disclosure. The processes with system user UID run on the device would be able to write out-of-bound memory which could lead to unspecified memory corruption.",
"id": "GHSA-wwfq-hcph-q6fg",
"modified": "2022-10-17T19:00:25Z",
"published": "2022-10-14T19:00:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41686"
},
{
"type": "WEB",
"url": "https://gitee.com/openharmony/security/blob/master/en/security-disclosure/2022/2022-10.md"
}
],
"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:N",
"type": "CVSS_V3"
}
]
}
GHSA-WWG9-XXWX-GJ49
Vulnerability from github – Published: 2022-05-13 01:02 – Updated: 2022-05-13 01:02
VLAI
Details
Stack-based buffer overflow in the delayed_output function in music.c in abcm2ps through 8.13.20 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2018-10753"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-05-05T02:29:00Z",
"severity": "CRITICAL"
},
"details": "Stack-based buffer overflow in the delayed_output function in music.c in abcm2ps through 8.13.20 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.",
"id": "GHSA-wwg9-xxwx-gj49",
"modified": "2022-05-13T01:02:20Z",
"published": "2022-05-13T01:02:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10753"
},
{
"type": "WEB",
"url": "https://github.com/leesavide/abcm2ps/issues/16"
},
{
"type": "WEB",
"url": "https://drive.google.com/drive/u/2/folders/1DvBEh5D-eW4UkvX3947UQh62i7hUIFN1"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/04/msg00015.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IGDXW2I3MY3QH4PJXLJET5QZZXMXTNWO"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LSTB65NYYCKU7O6RF5B6CYY5IA6CA66Y"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W6DUTXB4EC3TQHTTAAIBKJ54GJTF6Y7V"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WWGH-4J5F-P3C5
Vulnerability from github – Published: 2022-07-13 00:01 – Updated: 2022-07-16 00:00
VLAI
Details
A vulnerability has been identified in PADS Standard/Plus Viewer (All versions). The affected application contains an out of bounds write past the end of an allocated structure while parsing specially crafted PCB files. This could allow an attacker to execute code in the context of the current process. (FG-VD-22-039)
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-34274"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-07-12T10:15:00Z",
"severity": "HIGH"
},
"details": "A vulnerability has been identified in PADS Standard/Plus Viewer (All versions). The affected application contains an out of bounds write past the end of an allocated structure while parsing specially crafted PCB files. This could allow an attacker to execute code in the context of the current process. (FG-VD-22-039)",
"id": "GHSA-wwgh-4j5f-p3c5",
"modified": "2022-07-16T00:00:21Z",
"published": "2022-07-13T00:01:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-34274"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-439148.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"
}
]
}
GHSA-WWJ3-XJMP-VQ7M
Vulnerability from github – Published: 2024-08-14 15:31 – Updated: 2024-08-14 15:31
VLAI
Details
InDesign Desktop versions ID19.4, ID18.5.2 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-2024-41853"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-14T15:15:30Z",
"severity": "HIGH"
},
"details": "InDesign Desktop versions ID19.4, ID18.5.2 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-wwj3-xjmp-vq7m",
"modified": "2024-08-14T15:31:18Z",
"published": "2024-08-14T15:31:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41853"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/indesign/apsb24-56.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-WWM6-R38H-PPG7
Vulnerability from github – Published: 2022-05-13 01:20 – Updated: 2023-10-06 01:02
VLAI
Summary
ChakraCore RCE Vulnerability
Details
A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8286, CVE-2018-8290, CVE-2018-8294.
Severity
7.5 (High)
{
"affected": [
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.ChakraCore"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2018-8280"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2023-07-21T18:00:17Z",
"nvd_published_at": "2018-07-11T00:29:00Z",
"severity": "HIGH"
},
"details": "A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka \"Chakra Scripting Engine Memory Corruption Vulnerability.\" This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8286, CVE-2018-8290, CVE-2018-8294.",
"id": "GHSA-wwm6-r38h-ppg7",
"modified": "2023-10-06T01:02:51Z",
"published": "2022-05-13T01:20:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-8280"
},
{
"type": "WEB",
"url": "https://github.com/chakra-core/ChakraCore/pull/5444"
},
{
"type": "WEB",
"url": "https://github.com/chakra-core/ChakraCore/commit/3ad284acd3c277d2e9b38b96ccfd17968e037526"
},
{
"type": "PACKAGE",
"url": "https://github.com/chakra-core/ChakraCore"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8280"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20210124183849/http://www.securityfocus.com/bid/104642"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20211202002348/http://www.securitytracker.com/id/1041256"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "ChakraCore RCE Vulnerability"
}
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.