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.
15089 vulnerabilities reference this CWE, most recent first.
GHSA-VQ8V-GQR8-JRR5
Vulnerability from github – Published: 2022-05-24 17:05 – Updated: 2022-05-24 17:05
VLAI
Details
Mozilla community member Philipp reported a memory safety bug present in Firefox 68 when 360 Total Security was installed. This bug showed evidence of memory corruption in the accessibility engine and we presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Firefox < 69, Thunderbird < 68.2, and Firefox ESR < 68.2.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2019-11758"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-01-08T20:15:00Z",
"severity": "MODERATE"
},
"details": "Mozilla community member Philipp reported a memory safety bug present in Firefox 68 when 360 Total Security was installed. This bug showed evidence of memory corruption in the accessibility engine and we presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Firefox \u003c 69, Thunderbird \u003c 68.2, and Firefox ESR \u003c 68.2.",
"id": "GHSA-vq8v-gqr8-jrr5",
"modified": "2022-05-24T17:05:47Z",
"published": "2022-05-24T17:05:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11758"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1536227"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4335-1"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2019-25"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2019-33"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2019-35"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-VQ9M-4624-XG7R
Vulnerability from github – Published: 2025-09-22 21:30 – Updated: 2025-09-22 21:30
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
ALSA: oss: Fix PCM OSS buffer allocation overflow
We've got syzbot reports hitting INT_MAX overflow at vmalloc() allocation that is called from snd_pcm_plug_alloc(). Although we apply the restrictions to input parameters, it's based only on the hw_params of the underlying PCM device. Since the PCM OSS layer allocates a temporary buffer for the data conversion, the size may become unexpectedly large when more channels or higher rates is given; in the reported case, it went over INT_MAX, hence it hits WARN_ON().
This patch is an attempt to avoid such an overflow and an allocation for too large buffers. First off, it adds the limit of 1MB as the upper bound for period bytes. This must be large enough for all use cases, and we really don't want to handle a larger temporary buffer than this size. The size check is performed at two places, where the original period bytes is calculated and where the plugin buffer size is calculated.
In addition, the driver uses array_size() and array3_size() for multiplications to catch overflows for the converted period size and buffer bytes.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-49292"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-26T07:01:06Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: oss: Fix PCM OSS buffer allocation overflow\n\nWe\u0027ve got syzbot reports hitting INT_MAX overflow at vmalloc()\nallocation that is called from snd_pcm_plug_alloc(). Although we\napply the restrictions to input parameters, it\u0027s based only on the\nhw_params of the underlying PCM device. Since the PCM OSS layer\nallocates a temporary buffer for the data conversion, the size may\nbecome unexpectedly large when more channels or higher rates is given;\nin the reported case, it went over INT_MAX, hence it hits WARN_ON().\n\nThis patch is an attempt to avoid such an overflow and an allocation\nfor too large buffers. First off, it adds the limit of 1MB as the\nupper bound for period bytes. This must be large enough for all use\ncases, and we really don\u0027t want to handle a larger temporary buffer\nthan this size. The size check is performed at two places, where the\noriginal period bytes is calculated and where the plugin buffer size\nis calculated.\n\nIn addition, the driver uses array_size() and array3_size() for\nmultiplications to catch overflows for the converted period size and\nbuffer bytes.",
"id": "GHSA-vq9m-4624-xg7r",
"modified": "2025-09-22T21:30:16Z",
"published": "2025-09-22T21:30:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49292"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0c4190b41a69990666b4000999e27f8f1b2a426b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5ce74ff7059341d8b2f4d01c3383491df63d1898"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7a40cbf3579a8e14849ba7ce46309c1992658d2b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a63af1baf0a5e11827db60e3127f87e437cab6e5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e74a069c6a7bb505f3ade141dddf85f4b0b5145a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/efb6402c3c4a7c26d97c92d70186424097b6e366"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fb08bf99195a87c798bc8ae1357337a981faeade"
}
],
"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-VQ9R-CP35-P48Q
Vulnerability from github – Published: 2026-01-28 18:30 – Updated: 2026-01-28 18:30
VLAI
Details
Shadow mode tracing code uses a set of per-CPU variables to avoid cumbersome parameter passing. Some of these variables are written to with guest controlled data, of guest controllable size. That size can be larger than the variable, and bounding of the writes was missing.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-58150"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-28T16:16:12Z",
"severity": "HIGH"
},
"details": "Shadow mode tracing code uses a set of per-CPU variables to avoid\ncumbersome parameter passing. Some of these variables are written to\nwith guest controlled data, of guest controllable size. That size can\nbe larger than the variable, and bounding of the writes was missing.",
"id": "GHSA-vq9r-cp35-p48q",
"modified": "2026-01-28T18:30:47Z",
"published": "2026-01-28T18:30:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-58150"
},
{
"type": "WEB",
"url": "https://xenbits.xenproject.org/xsa/advisory-477.html"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/01/27/1"
},
{
"type": "WEB",
"url": "http://xenbits.xen.org/xsa/advisory-477.html"
}
],
"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-VQ9W-PFPR-H96V
Vulnerability from github – Published: 2023-07-12 00:30 – Updated: 2024-04-04 06:00
VLAI
Details
GPAC v2.3-DEV-rev381-g817a848f6-master was discovered to contain a segmentation violation in the BM_ParseIndexValueReplace function at /lib/libgpac.so.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-37767"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-07-11T23:15:09Z",
"severity": "MODERATE"
},
"details": "GPAC v2.3-DEV-rev381-g817a848f6-master was discovered to contain a segmentation violation in the BM_ParseIndexValueReplace function at /lib/libgpac.so.",
"id": "GHSA-vq9w-pfpr-h96v",
"modified": "2024-04-04T06:00:52Z",
"published": "2023-07-12T00:30:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-37767"
},
{
"type": "WEB",
"url": "https://github.com/gpac/gpac/issues/2514"
}
],
"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-VQCJ-WRF2-7V73
Vulnerability from github – Published: 2021-03-18 19:55 – Updated: 2024-10-11 20:59
VLAI
Summary
Pillow Out-of-bounds Write
Details
In Pillow before 8.1.0, TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF in RGBA mode.
Severity
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "pillow"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "8.1.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-35654"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2021-03-12T23:18:25Z",
"nvd_published_at": "2021-01-12T09:15:00Z",
"severity": "HIGH"
},
"details": "In Pillow before 8.1.0, TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF in RGBA mode.",
"id": "GHSA-vqcj-wrf2-7v73",
"modified": "2024-10-11T20:59:41Z",
"published": "2021-03-18T19:55:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35654"
},
{
"type": "WEB",
"url": "https://github.com/python-pillow/Pillow/commit/eb8c1206d6b170d4e798a00db7432e023853da5c"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-vqcj-wrf2-7v73"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-70.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/python-pillow/Pillow"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6BYVI5G44MRIPERKYDQEL3S3YQCZTVHE"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BF553AMNNNBW7SH4IM4MNE4M6GNZQ7YD"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TQQY6472RX4J2SUJENWDZAWKTJJGP2ML"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZTSY25UJU7NJUFHH3HWT575LT4TDFWBZ"
},
{
"type": "WEB",
"url": "https://pillow.readthedocs.io/en/stable/releasenotes/index.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Pillow Out-of-bounds Write"
}
GHSA-VQCQ-PMF8-W6P8
Vulnerability from github – Published: 2026-03-02 09:30 – Updated: 2026-03-02 15:31
VLAI
Details
In display, there is a possible memory corruption due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10436995; Issue ID: MSV-5721.
Severity
6.7 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-20444"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-02T09:16:17Z",
"severity": "MODERATE"
},
"details": "In display, there is a possible memory corruption due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10436995; Issue ID: MSV-5721.",
"id": "GHSA-vqcq-pmf8-w6p8",
"modified": "2026-03-02T15:31:23Z",
"published": "2026-03-02T09:30:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20444"
},
{
"type": "WEB",
"url": "https://corp.mediatek.com/product-security-bulletin/March-2026"
}
],
"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-VQFJ-MM88-89M5
Vulnerability from github – Published: 2024-11-22 21:32 – Updated: 2024-11-22 21:32
VLAI
Details
Luxion KeyShot 3DS File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Luxion KeyShot. 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 3DS files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-23693.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-11578"
],
"database_specific": {
"cwe_ids": [
"CWE-121",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-22T21:15:16Z",
"severity": "HIGH"
},
"details": "Luxion KeyShot 3DS File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Luxion KeyShot. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of 3DS files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-23693.",
"id": "GHSA-vqfj-mm88-89m5",
"modified": "2024-11-22T21:32:18Z",
"published": "2024-11-22T21:32:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-11578"
},
{
"type": "WEB",
"url": "https://download.keyshot.com/cert/ksa-655925/ksa-655925.pdf?version=1.0\u0026_gl=1*1vzfrlf*_gcl_au*MTIxNTA2Njg4MS4xNzMxNTMwMjIx"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1609"
}
],
"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-VQGC-G267-8P6W
Vulnerability from github – Published: 2022-05-24 19:02 – Updated: 2022-08-06 00:00
VLAI
Details
A flaw was found in libwebp in versions before 1.0.1. A heap-based buffer overflow was found in PutLE16(). The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2018-25011"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-05-21T17:15:00Z",
"severity": "CRITICAL"
},
"details": "A flaw was found in libwebp in versions before 1.0.1. A heap-based buffer overflow was found in PutLE16(). The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
"id": "GHSA-vqgc-g267-8p6w",
"modified": "2022-08-06T00:00:44Z",
"published": "2022-05-24T19:02:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-25011"
},
{
"type": "WEB",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9119"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1956919"
},
{
"type": "WEB",
"url": "https://chromium.googlesource.com/webm/libwebp/+/v1.0.1"
},
{
"type": "WEB",
"url": "https://chromium.googlesource.com/webm/libwebp/+log/be738c6d396fa5a272c1b209be4379a7532debfe..29fb8562c60b5a919a75d904ff7366af423f8ab9?pretty=fuller\u0026n=10000"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00005.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00006.html"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20211104-0004"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT212601"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4930"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2021/Jul/54"
}
],
"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-VQGF-5288-7FGG
Vulnerability from github – Published: 2024-07-09 21:30 – Updated: 2024-08-01 15:31
VLAI
Details
In availableToWriteBytes of MessageQueueBase.h, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-31313"
],
"database_specific": {
"cwe_ids": [
"CWE-269",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-09T21:15:12Z",
"severity": "HIGH"
},
"details": "In availableToWriteBytes of MessageQueueBase.h, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.",
"id": "GHSA-vqgf-5288-7fgg",
"modified": "2024-08-01T15:31:54Z",
"published": "2024-07-09T21:30:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-31313"
},
{
"type": "WEB",
"url": "https://android.googlesource.com/platform/system/libfmq/+/79bbf4aeef4b254c52da670a972e22956c8c659d"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2024-06-01"
}
],
"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-VQGP-46R4-F6J8
Vulnerability from github – Published: 2022-09-25 00:00 – Updated: 2022-09-28 00:00
VLAI
Details
Tenda i9 v1.0.0.8(3828) was discovered to contain a buffer overflow via the formwrlSSIDset function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted string.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2022-40102"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-09-23T19:15:00Z",
"severity": "HIGH"
},
"details": "Tenda i9 v1.0.0.8(3828) was discovered to contain a buffer overflow via the formwrlSSIDset function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted string.",
"id": "GHSA-vqgp-46r4-f6j8",
"modified": "2022-09-28T00:00:25Z",
"published": "2022-09-25T00:00:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-40102"
},
{
"type": "WEB",
"url": "https://github.com/splashsc/IOT_Vulnerability_Discovery/blob/main/Tenda/Tenda_i9/buffer_overflow_formwrlSSIDset.md"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.