Common Weakness Enumeration
CWE-125
AllowedOut-of-bounds Read
Abstraction: Base · Status: Draft
The product reads data past the end, or before the beginning, of the intended buffer.
11371 vulnerabilities reference this CWE, most recent first.
GHSA-CR26-H2HF-H9CV
Vulnerability from github – Published: 2022-05-24 17:12 – Updated: 2022-05-24 17:12
VLAI
Details
Adobe Acrobat and Reader versions 2020.006.20034 and earlier, 2017.011.30158 and earlier, 2017.011.30158 and earlier, 2015.006.30510 and earlier, and 2015.006.30510 and earlier have an out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure .
{
"affected": [],
"aliases": [
"CVE-2020-3806"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-03-25T18:15:00Z",
"severity": "MODERATE"
},
"details": "Adobe Acrobat and Reader versions 2020.006.20034 and earlier, 2017.011.30158 and earlier, 2017.011.30158 and earlier, 2015.006.30510 and earlier, and 2015.006.30510 and earlier have an out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure .",
"id": "GHSA-cr26-h2hf-h9cv",
"modified": "2022-05-24T17:12:45Z",
"published": "2022-05-24T17:12:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-3806"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb20-13.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-CR28-CMMC-G8HR
Vulnerability from github – Published: 2022-05-14 01:02 – Updated: 2022-05-14 01:02
VLAI
Details
net/xfrm/xfrm_policy.c in the Linux kernel through 4.12.3, when CONFIG_XFRM_MIGRATE is enabled, does not ensure that the dir value of xfrm_userpolicy_id is XFRM_POLICY_MAX or less, which allows local users to cause a denial of service (out-of-bounds access) or possibly have unspecified other impact via an XFRM_MSG_MIGRATE xfrm Netlink message.
Severity
7.0 (High)
{
"affected": [],
"aliases": [
"CVE-2017-11600"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-07-24T07:29:00Z",
"severity": "HIGH"
},
"details": "net/xfrm/xfrm_policy.c in the Linux kernel through 4.12.3, when CONFIG_XFRM_MIGRATE is enabled, does not ensure that the dir value of xfrm_userpolicy_id is XFRM_POLICY_MAX or less, which allows local users to cause a denial of service (out-of-bounds access) or possibly have unspecified other impact via an XFRM_MSG_MIGRATE xfrm Netlink message.",
"id": "GHSA-cr28-cmmc-g8hr",
"modified": "2022-05-14T01:02:41Z",
"published": "2022-05-14T01:02:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-11600"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:1965"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:2003"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:1170"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:1190"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/pixel/2017-11-01"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html"
},
{
"type": "WEB",
"url": "http://seclists.org/bugtraq/2017/Jul/30"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2017/dsa-3981"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/99928"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-CR2R-X8JM-24RC
Vulnerability from github – Published: 2023-06-28 18:30 – Updated: 2024-04-04 05:15
VLAI
Details
In btm_delete_stored_link_key_complete of btm_devctl.cc, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure over Bluetooth with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-260568359
Severity
4.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-21202"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-06-28T18:15:15Z",
"severity": "MODERATE"
},
"details": "In btm_delete_stored_link_key_complete of btm_devctl.cc, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure over Bluetooth with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-260568359",
"id": "GHSA-cr2r-x8jm-24rc",
"modified": "2024-04-04T05:15:36Z",
"published": "2023-06-28T18:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-21202"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/pixel/2023-06-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-CR4W-FCQ2-H6Q4
Vulnerability from github – Published: 2022-12-31 00:30 – Updated: 2023-01-06 21:30
VLAI
Details
NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer handler, where an out-of-bounds read may lead to denial of service, information disclosure, or data tampering.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-34676"
],
"database_specific": {
"cwe_ids": [
"CWE-125",
"CWE-197"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-30T23:15:00Z",
"severity": "HIGH"
},
"details": "NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer handler, where an out-of-bounds read may lead to denial of service, information disclosure, or data tampering.",
"id": "GHSA-cr4w-fcq2-h6q4",
"modified": "2023-01-06T21:30:41Z",
"published": "2022-12-31T00:30:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-34676"
},
{
"type": "WEB",
"url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5415"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202310-02"
}
],
"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-CR59-WJCV-C7GV
Vulnerability from github – Published: 2022-05-13 01:42 – Updated: 2022-05-13 01:42
VLAI
Details
The VTP parser in tcpdump before 4.9.2 has a buffer over-read in print-vtp.c:vtp_print().
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2017-13033"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-09-14T06:29:00Z",
"severity": "CRITICAL"
},
"details": "The VTP parser in tcpdump before 4.9.2 has a buffer over-read in print-vtp.c:vtp_print().",
"id": "GHSA-cr59-wjcv-c7gv",
"modified": "2022-05-13T01:42:56Z",
"published": "2022-05-13T01:42:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-13033"
},
{
"type": "WEB",
"url": "https://github.com/the-tcpdump-group/tcpdump/commit/ae83295915d08a854de27a88efac5dd7353e6d3f"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHEA-2018:0705"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201709-23"
},
{
"type": "WEB",
"url": "https://support.apple.com/HT208221"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2017/dsa-3971"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1039307"
},
{
"type": "WEB",
"url": "http://www.tcpdump.org/tcpdump-changes.txt"
}
],
"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-CR6C-2FJ6-GJP2
Vulnerability from github – Published: 2022-05-24 19:04 – Updated: 2022-05-24 19:04
VLAI
Details
Out-of-bounds memory access can occur while calculating alignment requirements for a negative width from external components in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music
{
"affected": [],
"aliases": [
"CVE-2020-11161"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-06-09T05:15:00Z",
"severity": "HIGH"
},
"details": "Out-of-bounds memory access can occur while calculating alignment requirements for a negative width from external components in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice \u0026 Music",
"id": "GHSA-cr6c-2fj6-gjp2",
"modified": "2022-05-24T19:04:44Z",
"published": "2022-05-24T19:04:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-11161"
},
{
"type": "WEB",
"url": "https://www.qualcomm.com/company/product-security/bulletins/january-2021-bulletin"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-CR6F-GF5W-VHRC
Vulnerability from github – Published: 2024-04-06 06:31 – Updated: 2024-06-05 17:11
VLAI
Summary
PyMongo Out-of-bounds Read in the bson module
Details
Versions of the package pymongo before 4.6.3 are vulnerable to Out-of-bounds Read in the bson module. Using the crafted payload the attacker could force the parser to deserialize unmanaged memory. The parser tries to interpret bytes next to buffer and throws an exception with string. If the following bytes are not printable UTF-8 the parser throws an exception with a single byte.
This advisory was initially published as CVE-2024-21506, which has since been rejected as a duplicate of CVE-2024-5629.
Severity
5.2 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "pymongo"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.6.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": true,
"github_reviewed_at": "2024-04-08T15:40:17Z",
"nvd_published_at": "2024-04-06T05:15:07Z",
"severity": "MODERATE"
},
"details": "Versions of the package pymongo before 4.6.3 are vulnerable to Out-of-bounds Read in the bson module. Using the crafted payload the attacker could force the parser to deserialize unmanaged memory. The parser tries to interpret bytes next to buffer and throws an exception with string. If the following bytes are not printable UTF-8 the parser throws an exception with a single byte.\n\nThis advisory was initially published as CVE-2024-21506, which has since been rejected as a duplicate of CVE-2024-5629.",
"id": "GHSA-cr6f-gf5w-vhrc",
"modified": "2024-06-05T17:11:58Z",
"published": "2024-04-06T06:31:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21506"
},
{
"type": "WEB",
"url": "https://github.com/mongodb/mongo-python-driver/commit/56b6b6dbc267d365d97c037082369dabf37405d2"
},
{
"type": "WEB",
"url": "https://gist.github.com/keltecc/62a7c2bf74a997d0a7b48a0ff3853a03"
},
{
"type": "PACKAGE",
"url": "https://github.com/mongodb/mongo-python-driver"
},
{
"type": "WEB",
"url": "https://security.snyk.io/vuln/SNYK-PYTHON-PYMONGO-6370597"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L",
"type": "CVSS_V3"
}
],
"summary": "PyMongo Out-of-bounds Read in the bson module ",
"withdrawn": "2024-06-05T17:11:58Z"
}
GHSA-CR6R-HMJ8-PR7R
Vulnerability from github – Published: 2026-05-18 17:48 – Updated: 2026-06-11 13:30
VLAI
Summary
ImageMagick: Out-of-Bounds Read of a single byte in meta encoder
Details
An of by one in the meta encoder could result in an out of bounds read of a single byte in the meta encoder.
Severity
5.3 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-OpenMP-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-OpenMP-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-OpenMP-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-OpenMP-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-OpenMP-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-OpenMP-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-45358"
],
"database_specific": {
"cwe_ids": [
"CWE-125",
"CWE-193"
],
"github_reviewed": true,
"github_reviewed_at": "2026-05-18T17:48:14Z",
"nvd_published_at": "2026-06-10T22:16:57Z",
"severity": "MODERATE"
},
"details": "An of by one in the meta encoder could result in an out of bounds read of a single byte in the meta encoder.",
"id": "GHSA-cr6r-hmj8-pr7r",
"modified": "2026-06-11T13:30:39Z",
"published": "2026-05-18T17:48:14Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-cr6r-hmj8-pr7r"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45358"
},
{
"type": "PACKAGE",
"url": "https://github.com/ImageMagick/ImageMagick"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "ImageMagick: Out-of-Bounds Read of a single byte in meta encoder"
}
GHSA-CR85-G5V9-2M32
Vulnerability from github – Published: 2026-05-18 18:31 – Updated: 2026-05-18 18:31
VLAI
Details
OpENer v2.3-558-g1e99582 contains an out-of-bounds read vulnerability in the Common Packet Format (CPF) parser, specifically in CreateCommonPacketFormatStructure() in source/src/enet_encap/cpf.c. A crafted ENIP/CPF message can supply an attacker-controlled item_count value that is not consistently validated against the remaining data_length of the CPF slice
Severity
6.2 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-38719"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-18T17:16:32Z",
"severity": "MODERATE"
},
"details": "OpENer v2.3-558-g1e99582 contains an out-of-bounds read vulnerability in the Common Packet Format (CPF) parser, specifically in CreateCommonPacketFormatStructure() in source/src/enet_encap/cpf.c. A crafted ENIP/CPF message can supply an attacker-controlled item_count value that is not consistently validated against the remaining data_length of the CPF slice",
"id": "GHSA-cr85-g5v9-2m32",
"modified": "2026-05-18T18:31:30Z",
"published": "2026-05-18T18:31:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-38719"
},
{
"type": "WEB",
"url": "https://github.com/EIPStackGroup/OpENer/issues/558"
},
{
"type": "WEB",
"url": "https://github.com/EIPStackGroup/OpENer"
}
],
"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"
}
]
}
GHSA-CR92-4PR9-789R
Vulnerability from github – Published: 2022-05-24 17:17 – Updated: 2022-10-14 12:00
VLAI
Details
In exif_data_save_data_entry of exif-data.c, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-8.0 Android-8.1 Android-9 Android-10Android ID: A-148705132
Severity
5.0 (Medium)
{
"affected": [],
"aliases": [
"CVE-2020-0093"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-05-14T21:15:00Z",
"severity": "LOW"
},
"details": "In exif_data_save_data_entry of exif-data.c, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-8.0 Android-8.1 Android-9 Android-10Android ID: A-148705132",
"id": "GHSA-cr92-4pr9-789r",
"modified": "2022-10-14T12:00:20Z",
"published": "2022-05-24T17:17:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-0093"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/05/msg00016.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202007-05"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2020-05-01"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4396-1"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00017.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
Mitigation MIT-5
Implementation
Strategy: Input Validation
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
- To reduce the likelihood of introducing an out-of-bounds read, ensure that you validate and ensure correct calculations for any length argument, buffer size calculation, or offset. Be especially careful of relying on a sentinel (i.e. special character such as NUL) in untrusted inputs.
Mitigation
Architecture and Design
Strategy: Language Selection
Use a language that provides appropriate memory abstractions.
CAPEC-540: Overread Buffers
An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.