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.
11806 vulnerabilities reference this CWE, most recent first.
GHSA-CW2F-QVGG-223G
Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-06-25 21:31In the Linux kernel, the following vulnerability has been resolved:
ima: Fix stack-out-of-bounds in is_bprm_creds_for_exec()
KASAN reported a stack-out-of-bounds access in ima_appraise_measurement from is_bprm_creds_for_exec:
BUG: KASAN: stack-out-of-bounds in ima_appraise_measurement+0x12dc/0x16a0 Read of size 1 at addr ffffc9000160f940 by task sudo/550 The buggy address belongs to stack of task sudo/550 and is located at offset 24 in frame: ima_appraise_measurement+0x0/0x16a0 This frame has 2 objects: [48, 56) 'file' [80, 148) 'hash'
This is caused by using container_of on the *file pointer. This offset calculation is what triggers the stack-out-of-bounds error.
In order to fix this, pass in a bprm_is_check boolean which can be set depending on how process_measurement is called. If the caller has a linux_binprm pointer and the function is BPRM_CHECK we can determine is_check and set it then. Otherwise set it to false.
{
"affected": [],
"aliases": [
"CVE-2025-71306"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-27T14:16:43Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nima: Fix stack-out-of-bounds in is_bprm_creds_for_exec()\n\nKASAN reported a stack-out-of-bounds access in ima_appraise_measurement\nfrom is_bprm_creds_for_exec:\n\nBUG: KASAN: stack-out-of-bounds in ima_appraise_measurement+0x12dc/0x16a0\n Read of size 1 at addr ffffc9000160f940 by task sudo/550\nThe buggy address belongs to stack of task sudo/550\nand is located at offset 24 in frame:\n ima_appraise_measurement+0x0/0x16a0\nThis frame has 2 objects:\n [48, 56) \u0027file\u0027\n [80, 148) \u0027hash\u0027\n\nThis is caused by using container_of on the *file pointer. This offset\ncalculation is what triggers the stack-out-of-bounds error.\n\nIn order to fix this, pass in a bprm_is_check boolean which can be set\ndepending on how process_measurement is called. If the caller has a\nlinux_binprm pointer and the function is BPRM_CHECK we can determine\nis_check and set it then. Otherwise set it to false.",
"id": "GHSA-cw2f-qvgg-223g",
"modified": "2026-06-25T21:31:18Z",
"published": "2026-05-27T15:33:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71306"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/377cae9851e8559e9d8b82a78c1ac0abeb18839c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ab3d16da982a4ebb715d487dbf9dd66e3990d935"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-CW2G-CG54-PV6R
Vulnerability from github – Published: 2025-03-10 21:31 – Updated: 2025-03-10 21:31In the Linux kernel, the following vulnerability has been resolved:
exfat: check if cluster num is valid
Syzbot reported slab-out-of-bounds read in exfat_clear_bitmap. This was triggered by reproducer calling truncute with size 0, which causes the following trace:
BUG: KASAN: slab-out-of-bounds in exfat_clear_bitmap+0x147/0x490 fs/exfat/balloc.c:174 Read of size 8 at addr ffff888115aa9508 by task syz-executor251/365
Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118 print_address_description+0x81/0x3c0 mm/kasan/report.c:233 __kasan_report mm/kasan/report.c:419 [inline] kasan_report+0x1a4/0x1f0 mm/kasan/report.c:436 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309 exfat_clear_bitmap+0x147/0x490 fs/exfat/balloc.c:174 exfat_free_cluster+0x25a/0x4a0 fs/exfat/fatent.c:181 __exfat_truncate+0x99e/0xe00 fs/exfat/file.c:217 exfat_truncate+0x11b/0x4f0 fs/exfat/file.c:243 exfat_setattr+0xa03/0xd40 fs/exfat/file.c:339 notify_change+0xb76/0xe10 fs/attr.c:336 do_truncate+0x1ea/0x2d0 fs/open.c:65
Move the is_valid_cluster() helper from fatent.c to a common header to make it reusable in other *.c files. And add is_valid_cluster() to validate if cluster number is within valid range in exfat_clear_bitmap() and exfat_set_bitmap().
{
"affected": [],
"aliases": [
"CVE-2022-49560"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-26T07:01:31Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: check if cluster num is valid\n\nSyzbot reported slab-out-of-bounds read in exfat_clear_bitmap.\nThis was triggered by reproducer calling truncute with size 0,\nwhich causes the following trace:\n\nBUG: KASAN: slab-out-of-bounds in exfat_clear_bitmap+0x147/0x490 fs/exfat/balloc.c:174\nRead of size 8 at addr ffff888115aa9508 by task syz-executor251/365\n\nCall Trace:\n __dump_stack lib/dump_stack.c:77 [inline]\n dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118\n print_address_description+0x81/0x3c0 mm/kasan/report.c:233\n __kasan_report mm/kasan/report.c:419 [inline]\n kasan_report+0x1a4/0x1f0 mm/kasan/report.c:436\n __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309\n exfat_clear_bitmap+0x147/0x490 fs/exfat/balloc.c:174\n exfat_free_cluster+0x25a/0x4a0 fs/exfat/fatent.c:181\n __exfat_truncate+0x99e/0xe00 fs/exfat/file.c:217\n exfat_truncate+0x11b/0x4f0 fs/exfat/file.c:243\n exfat_setattr+0xa03/0xd40 fs/exfat/file.c:339\n notify_change+0xb76/0xe10 fs/attr.c:336\n do_truncate+0x1ea/0x2d0 fs/open.c:65\n\nMove the is_valid_cluster() helper from fatent.c to a common\nheader to make it reusable in other *.c files. And add is_valid_cluster()\nto validate if cluster number is within valid range in exfat_clear_bitmap()\nand exfat_set_bitmap().",
"id": "GHSA-cw2g-cg54-pv6r",
"modified": "2025-03-10T21:31:10Z",
"published": "2025-03-10T21:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49560"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2193286402df2d9c53294f7a858d5e6fd7346e08"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/64ba4b15e5c045f8b746c6da5fc9be9a6b00b61d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7c58b14b6f9cde9f69e7fa053ab73f6e013a7131"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/82f723b8a5adf497f9e34c702a30ca7298615654"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c504167adc3248095a905fa0700a9693897cb5ed"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-CW34-GW9H-RXC6
Vulnerability from github – Published: 2024-04-09 18:30 – Updated: 2024-04-09 18:30Windows Remote Access Connection Manager Information Disclosure Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-28900"
],
"database_specific": {
"cwe_ids": [
"CWE-125",
"CWE-126"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-09T17:15:48Z",
"severity": "MODERATE"
},
"details": "Windows Remote Access Connection Manager Information Disclosure Vulnerability",
"id": "GHSA-cw34-gw9h-rxc6",
"modified": "2024-04-09T18:30:26Z",
"published": "2024-04-09T18:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-28900"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-28900"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-CW47-8XQR-CFH2
Vulnerability from github – Published: 2024-01-12 03:30 – Updated: 2024-06-27 15:30An out-of-bounds access vulnerability involving netfilter was reported and fixed as: f1082dd31fe4 (netfilter: nf_tables: Reject tables of unsupported family); While creating a new netfilter table, lack of a safeguard against invalid nf_tables family (pf) values within nf_tables_newtable function enables an attacker to achieve out-of-bounds access.
{
"affected": [],
"aliases": [
"CVE-2023-6040"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-01-12T02:15:44Z",
"severity": "HIGH"
},
"details": "An out-of-bounds access vulnerability involving netfilter was reported and fixed as: f1082dd31fe4 (netfilter: nf_tables: Reject tables of unsupported family); While creating a new netfilter table, lack of a safeguard against invalid nf_tables family (pf) values within `nf_tables_newtable` function enables an attacker to achieve out-of-bounds access.",
"id": "GHSA-cw47-8xqr-cfh2",
"modified": "2024-06-27T15:30:37Z",
"published": "2024-01-12T03:30:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6040"
},
{
"type": "WEB",
"url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6040"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
},
{
"type": "WEB",
"url": "https://www.openwall.com/lists/oss-security/2024/01/12/1"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1.html"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2024/01/12/1"
}
],
"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-CW9W-W7FX-35Q6
Vulnerability from github – Published: 2026-02-19 18:31 – Updated: 2026-02-19 18:31A flaw was found in QEMU. A specially crafted VMDK image could trigger an out-of-bounds read vulnerability, potentially leading to a 12-byte leak of sensitive information or a denial of service condition (DoS).
{
"affected": [],
"aliases": [
"CVE-2026-2243"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-19T18:25:00Z",
"severity": "MODERATE"
},
"details": "A flaw was found in QEMU. A specially crafted VMDK image could trigger an out-of-bounds read vulnerability, potentially leading to a 12-byte leak of sensitive information or a denial of service condition (DoS).",
"id": "GHSA-cw9w-w7fx-35q6",
"modified": "2026-02-19T18:31:55Z",
"published": "2026-02-19T18:31:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2243"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-2243"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2440934"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-CWGP-4XRF-XR6Q
Vulnerability from github – Published: 2026-05-21 09:32 – Updated: 2026-05-21 09:32A heap over-read in extended attribute (EA) header parsing in Netatalk 2.1.0 through 4.4.2 allows a remote authenticated attacker to obtain limited information or cause a minor service disruption via crafted EA data.
{
"affected": [],
"aliases": [
"CVE-2026-44067"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-21T08:16:22Z",
"severity": "MODERATE"
},
"details": "A heap over-read in extended attribute (EA) header parsing in Netatalk 2.1.0 through 4.4.2 allows a remote authenticated attacker to obtain limited information or cause a minor service disruption via crafted EA data.",
"id": "GHSA-cwgp-4xrf-xr6q",
"modified": "2026-05-21T09:32:11Z",
"published": "2026-05-21T09:32:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44067"
},
{
"type": "WEB",
"url": "https://netatalk.io/security/CVE-2026-44067"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-CWH8-G5RJ-527R
Vulnerability from github – Published: 2022-05-17 02:52 – Updated: 2025-04-20 03:30An information leak exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent via the server could potentially result in an out-of-bounds read. A malicious user, server, or man-in-the-middle can send an invalid size for an avatar which will trigger an out-of-bounds read vulnerability. This could result in a denial of service or copy data from memory to the file, resulting in an information leak if the avatar is sent to another user.
{
"affected": [],
"aliases": [
"CVE-2016-2367"
],
"database_specific": {
"cwe_ids": [
"CWE-125",
"CWE-200"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-01-06T21:59:00Z",
"severity": "MODERATE"
},
"details": "An information leak exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent via the server could potentially result in an out-of-bounds read. A malicious user, server, or man-in-the-middle can send an invalid size for an avatar which will trigger an out-of-bounds read vulnerability. This could result in a denial of service or copy data from memory to the file, resulting in an information leak if the avatar is sent to another user.",
"id": "GHSA-cwh8-g5rj-527r",
"modified": "2025-04-20T03:30:48Z",
"published": "2022-05-17T02:52:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-2367"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201701-38"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2016/dsa-3620"
},
{
"type": "WEB",
"url": "http://www.pidgin.im/news/security/?id=100"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/91335"
},
{
"type": "WEB",
"url": "http://www.talosintelligence.com/reports/TALOS-2016-0135"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-3031-1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-CWJM-393V-32X2
Vulnerability from github – Published: 2025-09-22 21:30 – Updated: 2025-12-12 21:31In the Linux kernel, the following vulnerability has been resolved:
audit: fix out-of-bounds read in audit_compare_dname_path()
When a watch on dir=/ is combined with an fsnotify event for a single-character name directly under / (e.g., creating /a), an out-of-bounds read can occur in audit_compare_dname_path().
The helper parent_len() returns 1 for "/". In audit_compare_dname_path(), when parentlen equals the full path length (1), the code sets p = path + 1 and pathlen = 1 - 1 = 0. The subsequent loop then dereferences p[pathlen - 1] (i.e., p[-1]), causing an out-of-bounds read.
Fix this by adding a pathlen > 0 check to the while loop condition to prevent the out-of-bounds access.
[PM: subject tweak, sign-off email fixes]
{
"affected": [],
"aliases": [
"CVE-2025-39840"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-19T16:15:42Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\naudit: fix out-of-bounds read in audit_compare_dname_path()\n\nWhen a watch on dir=/ is combined with an fsnotify event for a\nsingle-character name directly under / (e.g., creating /a), an\nout-of-bounds read can occur in audit_compare_dname_path().\n\nThe helper parent_len() returns 1 for \"/\". In audit_compare_dname_path(),\nwhen parentlen equals the full path length (1), the code sets p = path + 1\nand pathlen = 1 - 1 = 0. The subsequent loop then dereferences\np[pathlen - 1] (i.e., p[-1]), causing an out-of-bounds read.\n\nFix this by adding a pathlen \u003e 0 check to the while loop condition\nto prevent the out-of-bounds access.\n\n[PM: subject tweak, sign-off email fixes]",
"id": "GHSA-cwjm-393v-32x2",
"modified": "2025-12-12T21:31:32Z",
"published": "2025-09-22T21:30:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39840"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4540f1d23e7f387880ce46d11b5cd3f27248bf8d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9735a9dcc307427e7d6336c54171682f1bac9789"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-CWMC-8F88-5XX4
Vulnerability from github – Published: 2022-06-20 00:00 – Updated: 2022-06-28 00:00Out-of-bounds Read in GitHub repository vim/vim prior to 8.2.
{
"affected": [],
"aliases": [
"CVE-2022-2126"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-06-19T13:15:00Z",
"severity": "HIGH"
},
"details": "Out-of-bounds Read in GitHub repository vim/vim prior to 8.2.",
"id": "GHSA-cwmc-8f88-5xx4",
"modified": "2022-06-28T00:00:43Z",
"published": "2022-06-20T00:00:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2126"
},
{
"type": "WEB",
"url": "https://github.com/vim/vim/commit/156d3911952d73b03d7420dc3540215247db0fe8"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/8d196d9b-3d10-41d2-9f70-8ef0d08c946e"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/06/msg00014.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GFD2A4YLBR7OIRHTL7CK6YNMEIQ264CN"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U743FMJGFQ35GBPCQ6OWMVZEJPDFVEWM"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-32"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202305-16"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT213443"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT213444"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT213488"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2022/Oct/28"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2022/Oct/41"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2022/Oct/43"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2022/Oct/45"
}
],
"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-CWMV-7W7J-38CC
Vulnerability from github – Published: 2022-06-28 00:00 – Updated: 2022-07-08 00:00When performing the inference shape operation of Affine, Concat, MatMul, ArgMinMax, EmbeddingLookup, and Gather operators, if the input shape size is 0, it will access data outside of bounds of shape which allocated from heap buffers.
{
"affected": [],
"aliases": [
"CVE-2021-33648"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-06-27T17:15:00Z",
"severity": "HIGH"
},
"details": "When performing the inference shape operation of Affine, Concat, MatMul, ArgMinMax, EmbeddingLookup, and Gather operators, if the input shape size is 0, it will access data outside of bounds of shape which allocated from heap buffers.",
"id": "GHSA-cwmv-7w7j-38cc",
"modified": "2022-07-08T00:00:46Z",
"published": "2022-06-28T00:00:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-33648"
},
{
"type": "WEB",
"url": "https://gitee.com/mindspore/community/blob/master/security/security_advisory_list/mssa-2021-007_en.md"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
Mitigation MIT-5
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
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.