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.
15141 vulnerabilities reference this CWE, most recent first.
GHSA-RWF4-WMP4-834Q
Vulnerability from github – Published: 2025-02-27 03:34 – Updated: 2026-05-12 15:30
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
partitions: mac: fix handling of bogus partition table
Fix several issues in partition probing:
- The bailout for a bad partoffset must use put_dev_sector(), since the preceding read_part_sector() succeeded.
- If the partition table claims a silly sector size like 0xfff bytes (which results in partition table entries straddling sector boundaries), bail out instead of accessing out-of-bounds memory.
- We must not assume that the partition table contains proper NUL termination - use strnlen() and strncmp() instead of strlen() and strcmp().
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-21772"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-27T03:15:17Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\npartitions: mac: fix handling of bogus partition table\n\nFix several issues in partition probing:\n\n - The bailout for a bad partoffset must use put_dev_sector(), since the\n preceding read_part_sector() succeeded.\n - If the partition table claims a silly sector size like 0xfff bytes\n (which results in partition table entries straddling sector boundaries),\n bail out instead of accessing out-of-bounds memory.\n - We must not assume that the partition table contains proper NUL\n termination - use strnlen() and strncmp() instead of strlen() and\n strcmp().",
"id": "GHSA-rwf4-wmp4-834q",
"modified": "2026-05-12T15:30:49Z",
"published": "2025-02-27T03:34:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21772"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/213ba5bd81b7e97ac6e6190b8f3bc6ba76123625"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/27a39d006f85e869be68c1d5d2ce05e5d6445bf5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/40a35d14f3c0dc72b689061ec72fc9b193f37d1f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6578717ebca91678131d2b1f4ba4258e60536e9f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7fa9706722882f634090bfc9af642bf9ed719e27"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/80e648042e512d5a767da251d44132553fe04ae0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/92527100be38ede924768f4277450dfe8a40e16b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a3e77da9f843e4ab93917d30c314f0283e28c124"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.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-RWFF-5XH4-69FC
Vulnerability from github – Published: 2022-08-17 00:00 – Updated: 2022-08-19 00:00
VLAI
Details
SWFMill commit 53d7690 was discovered to contain a heap-buffer overflow via SWF::Reader::getU30().
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-36142"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-16T21:15:00Z",
"severity": "HIGH"
},
"details": "SWFMill commit 53d7690 was discovered to contain a heap-buffer overflow via SWF::Reader::getU30().",
"id": "GHSA-rwff-5xh4-69fc",
"modified": "2022-08-19T00:00:23Z",
"published": "2022-08-17T00:00:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-36142"
},
{
"type": "WEB",
"url": "https://github.com/djcsdy/swfmill/issues/61"
}
],
"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-RWG2-CQG5-RJM4
Vulnerability from github – Published: 2023-04-28 03:30 – Updated: 2024-10-21 18:30
VLAI
Details
qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2023-31436"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-04-28T02:15:09Z",
"severity": "HIGH"
},
"details": "qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX.",
"id": "GHSA-rwg2-cqg5-rjm4",
"modified": "2024-10-21T18:30:45Z",
"published": "2023-04-28T03:30:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-31436"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/3037933448f60f9acb705997eae62013ecb81e0d"
},
{
"type": "WEB",
"url": "https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.13"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20230609-0001"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5402"
},
{
"type": "WEB",
"url": "https://www.spinics.net/lists/stable-commits/msg294885.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.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-RWG3-P25F-FP5X
Vulnerability from github – Published: 2022-09-25 00:00 – Updated: 2022-09-28 00:00
VLAI
Details
SWFTools commit 772e55a2 was discovered to contain a heap-buffer overflow via draw_stroke at /gfxpoly/stroke.c.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2022-35096"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-09-23T18:15:00Z",
"severity": "MODERATE"
},
"details": "SWFTools commit 772e55a2 was discovered to contain a heap-buffer overflow via draw_stroke at /gfxpoly/stroke.c.",
"id": "GHSA-rwg3-p25f-fp5x",
"modified": "2022-09-28T00:00:26Z",
"published": "2022-09-25T00:00:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-35096"
},
{
"type": "WEB",
"url": "https://github.com/matthiaskramm/swftools/issues/182"
},
{
"type": "WEB",
"url": "https://github.com/Cvjark/Poc/blob/main/swftools/pdf2swf/CVE-2022-35096.md"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-RWH4-9PFG-VX5J
Vulnerability from github – Published: 2022-05-14 03:57 – Updated: 2023-01-25 03:30
VLAI
Details
Adobe Flash Player before 18.0.0.366 and 19.x through 22.x before 22.0.0.209 on Windows and OS X and before 11.2.202.632 on Linux allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2016-4172, CVE-2016-4175, CVE-2016-4179, CVE-2016-4180, CVE-2016-4181, CVE-2016-4182, CVE-2016-4183, CVE-2016-4184, CVE-2016-4185, CVE-2016-4186, CVE-2016-4187, CVE-2016-4188, CVE-2016-4189, CVE-2016-4190, CVE-2016-4217, CVE-2016-4218, CVE-2016-4219, CVE-2016-4220, CVE-2016-4221, CVE-2016-4233, CVE-2016-4234, CVE-2016-4235, CVE-2016-4236, CVE-2016-4237, CVE-2016-4239, CVE-2016-4240, CVE-2016-4241, CVE-2016-4242, CVE-2016-4243, CVE-2016-4244, CVE-2016-4245, and CVE-2016-4246.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2016-4238"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-07-13T02:00:00Z",
"severity": "CRITICAL"
},
"details": "Adobe Flash Player before 18.0.0.366 and 19.x through 22.x before 22.0.0.209 on Windows and OS X and before 11.2.202.632 on Linux allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2016-4172, CVE-2016-4175, CVE-2016-4179, CVE-2016-4180, CVE-2016-4181, CVE-2016-4182, CVE-2016-4183, CVE-2016-4184, CVE-2016-4185, CVE-2016-4186, CVE-2016-4187, CVE-2016-4188, CVE-2016-4189, CVE-2016-4190, CVE-2016-4217, CVE-2016-4218, CVE-2016-4219, CVE-2016-4220, CVE-2016-4221, CVE-2016-4233, CVE-2016-4234, CVE-2016-4235, CVE-2016-4236, CVE-2016-4237, CVE-2016-4239, CVE-2016-4240, CVE-2016-4241, CVE-2016-4242, CVE-2016-4243, CVE-2016-4244, CVE-2016-4245, and CVE-2016-4246.",
"id": "GHSA-rwh4-9pfg-vx5j",
"modified": "2023-01-25T03:30:31Z",
"published": "2022-05-14T03:57:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-4238"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2016:1423"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/flash-player/apsb16-25.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201607-03"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00016.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00017.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/91725"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1036280"
}
],
"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-RWHW-HW5R-W3CF
Vulnerability from github – Published: 2026-05-15 03:30 – Updated: 2026-05-15 03:30
VLAI
Details
An out of bounds write within the AMD Platform Management Framework (PMF) could allow an attacker to execute arbitrary code at an elevated privilege level potentially leading to loss of confidentiality integrity, or availability.
Severity
{
"affected": [],
"aliases": [
"CVE-2025-29935"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-15T03:16:21Z",
"severity": "HIGH"
},
"details": "An out of bounds write within the AMD Platform Management Framework (PMF) could allow an attacker to execute arbitrary code at an elevated privilege level potentially leading to loss of confidentiality integrity, or availability.",
"id": "GHSA-rwhw-hw5r-w3cf",
"modified": "2026-05-15T03:30:37Z",
"published": "2026-05-15T03:30:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-29935"
},
{
"type": "WEB",
"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4015.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:H/SI:H/SA:H/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-RWJ4-FXR5-GH64
Vulnerability from github – Published: 2022-05-13 01:18 – Updated: 2022-05-13 01:18
VLAI
Details
Python 2.7.14 is vulnerable to a Heap-Buffer-Overflow as well as a Heap-Use-After-Free. Python versions prior to 2.7.14 may also be vulnerable and it appears that Python 2.7.17 and prior may also be vulnerable however this has not been confirmed. The vulnerability lies when multiply threads are handling large amounts of data. In both cases there is essentially a race condition that occurs. For the Heap-Buffer-Overflow, Thread 2 is creating the size for a buffer, but Thread1 is already writing to the buffer without knowing how much to write. So when a large amount of data is being processed, it is very easy to cause memory corruption using a Heap-Buffer-Overflow. As for the Use-After-Free, Thread3->Malloc->Thread1->Free's->Thread2-Re-uses-Free'd Memory. The PSRT has stated that this is not a security vulnerability due to the fact that the attacker must be able to run code, however in some situations, such as function as a service, this vulnerability can potentially be used by an attacker to violate a trust boundary, as such the DWF feels this issue deserves a CVE.
Severity
{
"affected": [],
"aliases": [
"CVE-2018-1000030"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-02-08T17:29:00Z",
"severity": "LOW"
},
"details": "Python 2.7.14 is vulnerable to a Heap-Buffer-Overflow as well as a Heap-Use-After-Free. Python versions prior to 2.7.14 may also be vulnerable and it appears that Python 2.7.17 and prior may also be vulnerable however this has not been confirmed. The vulnerability lies when multiply threads are handling large amounts of data. In both cases there is essentially a race condition that occurs. For the Heap-Buffer-Overflow, Thread 2 is creating the size for a buffer, but Thread1 is already writing to the buffer without knowing how much to write. So when a large amount of data is being processed, it is very easy to cause memory corruption using a Heap-Buffer-Overflow. As for the Use-After-Free, Thread3-\u003eMalloc-\u003eThread1-\u003eFree\u0027s-\u003eThread2-Re-uses-Free\u0027d Memory. The PSRT has stated that this is not a security vulnerability due to the fact that the attacker must be able to run code, however in some situations, such as function as a service, this vulnerability can potentially be used by an attacker to violate a trust boundary, as such the DWF feels this issue deserves a CVE.",
"id": "GHSA-rwj4-fxr5-gh64",
"modified": "2022-05-13T01:18:43Z",
"published": "2022-05-13T01:18:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-1000030"
},
{
"type": "WEB",
"url": "https://bugs.python.org/issue31530"
},
{
"type": "WEB",
"url": "https://drive.google.com/file/d/1oyR9DAZjZK_SCn3mor6NRAYLJS6ueXaY/view"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201811-02"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3817-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3817-2"
},
{
"type": "WEB",
"url": "https://www.dropbox.com/sh/sj3ee7xv55j36k7/AADwP-YfOYikBMuy32e0uvPFa?dl=0"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujan2020.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-RWJG-9M86-4G9R
Vulnerability from github – Published: 2023-09-20 15:30 – Updated: 2024-04-04 07:45
VLAI
Details
D-Link device DI-7200GV2.E1 v21.04.09E1 was discovered to contain a stack overflow via the hi_up parameter in the qos_ext.asp function.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2023-43201"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-09-20T14:15:14Z",
"severity": "CRITICAL"
},
"details": "D-Link device DI-7200GV2.E1 v21.04.09E1 was discovered to contain a stack overflow via the hi_up parameter in the qos_ext.asp function.",
"id": "GHSA-rwjg-9m86-4g9r",
"modified": "2024-04-04T07:45:54Z",
"published": "2023-09-20T15:30:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43201"
},
{
"type": "WEB",
"url": "https://github.com/Archerber/bug_submit/blob/main/D-Link/DI-7200GV2/bug2.md"
},
{
"type": "WEB",
"url": "https://www.dlink.com/en/security-bulletin"
}
],
"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-RWJP-VXM5-V8J3
Vulnerability from github – Published: 2022-05-13 01:14 – Updated: 2022-05-13 01:14
VLAI
Details
A memory corruption vulnerability has been identified in WECON LeviStudioU version 1.8.56 and prior, which may allow arbitrary code execution. Mat Powell, Ziad Badawi, and Natnael Samson working with Trend Micro's Zero Day Initiative, reported these vulnerabilities to NCCIC.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2019-6541"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-02-13T00:29:00Z",
"severity": "HIGH"
},
"details": "A memory corruption vulnerability has been identified in WECON LeviStudioU version 1.8.56 and prior, which may allow arbitrary code execution. Mat Powell, Ziad Badawi, and Natnael Samson working with Trend Micro\u0027s Zero Day Initiative, reported these vulnerabilities to NCCIC.",
"id": "GHSA-rwjp-vxm5-v8j3",
"modified": "2022-05-13T01:14:54Z",
"published": "2022-05-13T01:14:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-6541"
},
{
"type": "WEB",
"url": "https://ics-cert.us-cert.gov/advisories/ICSA-19-036-03"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/106861"
}
],
"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-RWM6-QX2J-8FMR
Vulnerability from github – Published: 2021-12-08 00:01 – Updated: 2021-12-09 00:01
VLAI
Details
A missing bounds check in image blurring code prior to WhatsApp for Android v2.21.22.7 and WhatsApp Business for Android v2.21.22.7 could have allowed an out-of-bounds write if a user sent a malicious image.
{
"affected": [],
"aliases": [
"CVE-2021-24041"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-12-07T19:15:00Z",
"severity": "CRITICAL"
},
"details": "A missing bounds check in image blurring code prior to WhatsApp for Android v2.21.22.7 and WhatsApp Business for Android v2.21.22.7 could have allowed an out-of-bounds write if a user sent a malicious image.",
"id": "GHSA-rwm6-qx2j-8fmr",
"modified": "2021-12-09T00:01:25Z",
"published": "2021-12-08T00:01:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-24041"
},
{
"type": "WEB",
"url": "https://www.whatsapp.com/security/advisories/2021"
}
],
"schema_version": "1.4.0",
"severity": []
}
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.