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.
11769 vulnerabilities reference this CWE, most recent first.
GHSA-CPGX-54RR-4JM6
Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-06-16 18:32In the Linux kernel, the following vulnerability has been resolved:
misc: ibmasm: fix OOB MMIO read in ibmasm_handle_mouse_interrupt()
ibmasm_handle_mouse_interrupt() performs an out-of-bounds MMIO read when the queue reader or writer index from hardware exceeds REMOTE_QUEUE_SIZE (60).
A compromised service processor can trigger this by writing an out-of-range value to the reader or writer MMIO register before asserting an interrupt. Since writer is re-read from hardware on every loop iteration, it can also be set to an out-of-range value after the loop has already started.
The root cause is that get_queue_reader() and get_queue_writer() return raw readl() values that are passed directly into get_queue_entry(), which computes:
queue_begin + reader * sizeof(struct remote_input)
with no bounds check. This unchecked MMIO address is then passed to memcpy_fromio(), reading 8 bytes from unintended device registers. For sufficiently large values the address falls outside the PCI BAR mapping entirely, triggering a machine check exception.
Fix by checking both indices against REMOTE_QUEUE_SIZE at the top of the loop body, before any call to get_queue_entry(). On an out-of-range value, reset the reader register to 0 via set_queue_reader() before breaking, so that normal queue operation can resume if the corrupted hardware state is transient.
{
"affected": [],
"aliases": [
"CVE-2026-46022"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-27T14:17:20Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: ibmasm: fix OOB MMIO read in ibmasm_handle_mouse_interrupt()\n\nibmasm_handle_mouse_interrupt() performs an out-of-bounds MMIO read\nwhen the queue reader or writer index from hardware exceeds\nREMOTE_QUEUE_SIZE (60).\n\nA compromised service processor can trigger this by writing an\nout-of-range value to the reader or writer MMIO register before\nasserting an interrupt. Since writer is re-read from hardware on\nevery loop iteration, it can also be set to an out-of-range value\nafter the loop has already started.\n\nThe root cause is that get_queue_reader() and get_queue_writer() return\nraw readl() values that are passed directly into get_queue_entry(),\nwhich computes:\n\n queue_begin + reader * sizeof(struct remote_input)\n\nwith no bounds check. This unchecked MMIO address is then passed to\nmemcpy_fromio(), reading 8 bytes from unintended device registers.\nFor sufficiently large values the address falls outside the PCI BAR\nmapping entirely, triggering a machine check exception.\n\nFix by checking both indices against REMOTE_QUEUE_SIZE at the top of\nthe loop body, before any call to get_queue_entry(). On an out-of-range\nvalue, reset the reader register to 0 via set_queue_reader() before\nbreaking, so that normal queue operation can resume if the corrupted\nhardware state is transient.",
"id": "GHSA-cpgx-54rr-4jm6",
"modified": "2026-06-16T18:32:28Z",
"published": "2026-05-27T15:33:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46022"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/07c4f18b303106e6b24492c12b95d48a4b985841"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1ca75f6b74ec7f685464e5745ecfcf3a76d284e9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/22a16d3eafee92a165c756081587c95850127107"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4b6e6ead556734bdc14024c5f837132b1e7a4b84"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6f6ecc9153df176e956d0664b56f93080b0a45f0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bac8643486f854dd53af9b23aea7dbbd9b7c1865"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f7e5b4eefd7be3e09f8bd5fee63ed478fd7446ab"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fc7e9a74e32299d7e93e178ca482a0b59ef1595b"
}
],
"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-CPHR-3J6J-HWCV
Vulnerability from github – Published: 2022-05-24 16:56 – Updated: 2024-04-04 01:58VMware ESXi (6.7 before ESXi670-201904101-SG and 6.5 before ESXi650-201903001), Workstation (15.x before 15.0.3 and 14.x before 14.1.6) and Fusion (11.x before 11.0.3 and 10.x before 10.1.6) contain an out-of-bounds read vulnerability in the pixel shader functionality. Successful exploitation of this issue may lead to information disclosure or may allow attackers with normal user privileges to create a denial-of-service condition on the host. Exploitation of this issue require an attacker to have access to a virtual machine with 3D graphics enabled. It is not enabled by default on ESXi and is enabled by default on Workstation and Fusion.
{
"affected": [],
"aliases": [
"CVE-2019-5521"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-09-20T18:15:00Z",
"severity": "CRITICAL"
},
"details": "VMware ESXi (6.7 before ESXi670-201904101-SG and 6.5 before ESXi650-201903001), Workstation (15.x before 15.0.3 and 14.x before 14.1.6) and Fusion (11.x before 11.0.3 and 10.x before 10.1.6) contain an out-of-bounds read vulnerability in the pixel shader functionality. Successful exploitation of this issue may lead to information disclosure or may allow attackers with normal user privileges to create a denial-of-service condition on the host. Exploitation of this issue require an attacker to have access to a virtual machine with 3D graphics enabled. It is not enabled by default on ESXi and is enabled by default on Workstation and Fusion.",
"id": "GHSA-cphr-3j6j-hwcv",
"modified": "2024-04-04T01:58:47Z",
"published": "2022-05-24T16:56:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-5521"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0757"
},
{
"type": "WEB",
"url": "https://www.vmware.com/security/advisories/VMSA-2019-0012.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-CPJ2-HHJ8-VFGH
Vulnerability from github – Published: 2022-05-24 17:14 – Updated: 2022-11-15 12:00An issue was discovered in OpenEXR before 2.4.1. There is an std::vector out-of-bounds read and write, as demonstrated by ImfTileOffsets.cpp.
{
"affected": [],
"aliases": [
"CVE-2020-11763"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-04-14T23:15:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in OpenEXR before 2.4.1. There is an std::vector out-of-bounds read and write, as demonstrated by ImfTileOffsets.cpp.",
"id": "GHSA-cpj2-hhj8-vfgh",
"modified": "2022-11-15T12:00:18Z",
"published": "2022-05-24T17:14:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-11763"
},
{
"type": "WEB",
"url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1987"
},
{
"type": "WEB",
"url": "https://github.com/AcademySoftwareFoundation/openexr/blob/master/CHANGES.md#version-241-february-11-2020"
},
{
"type": "WEB",
"url": "https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v2.4.1"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00056.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/F4KFGDQG5PVYAU7TS5MZ7XCS6EMPVII3"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202107-27"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT211288"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT211289"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT211290"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT211291"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT211293"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT211294"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT211295"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4339-1"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2020/dsa-4755"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00051.html"
}
],
"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-CPJM-J6P4-7VF4
Vulnerability from github – Published: 2022-05-17 02:54 – Updated: 2025-04-20 03:34The fnmatch function in the GNU C Library (aka glibc or libc6) before 2.22 might allow context-dependent attackers to cause a denial of service (application crash) via a malformed pattern, which triggers an out-of-bounds read.
{
"affected": [],
"aliases": [
"CVE-2015-8984"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-03-20T16:59:00Z",
"severity": "MODERATE"
},
"details": "The fnmatch function in the GNU C Library (aka glibc or libc6) before 2.22 might allow context-dependent attackers to cause a denial of service (application crash) via a malformed pattern, which triggers an out-of-bounds read.",
"id": "GHSA-cpjm-j6p4-7vf4",
"modified": "2025-04-20T03:34:28Z",
"published": "2022-05-17T02:54:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2015-8984"
},
{
"type": "WEB",
"url": "https://sourceware.org/bugzilla/show_bug.cgi?id=18032"
},
{
"type": "WEB",
"url": "https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=4a28f4d55a6cc33474c0792fe93b5942d81bf185"
},
{
"type": "WEB",
"url": "https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=4a28f4d55a6cc33474c0792fe93b5942d81bf185"
},
{
"type": "WEB",
"url": "https://www.sourceware.org/ml/libc-alpha/2015-08/msg00609.html"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2015/02/26/5"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2017/02/14/9"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/72789"
}
],
"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-CPMG-R9CR-Q8PJ
Vulnerability from github – Published: 2026-04-03 18:31 – Updated: 2026-04-27 15:30In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: Validate L2CAP_INFO_RSP payload length before access
l2cap_information_rsp() checks that cmd_len covers the fixed l2cap_info_rsp header (type + result, 4 bytes) but then reads rsp->data without verifying that the payload is present:
-
L2CAP_IT_FEAT_MASK calls get_unaligned_le32(rsp->data), which reads 4 bytes past the header (needs cmd_len >= 8).
-
L2CAP_IT_FIXED_CHAN reads rsp->data[0], 1 byte past the header (needs cmd_len >= 5).
A truncated L2CAP_INFO_RSP with result == L2CAP_IR_SUCCESS triggers an out-of-bounds read of adjacent skb data.
Guard each data access with the required payload length check. If the payload is too short, skip the read and let the state machine complete with safe defaults (feat_mask and remote_fixed_chan remain zero from kzalloc), so the info timer cleanup and l2cap_conn_start() still run and the connection is not stalled.
{
"affected": [],
"aliases": [
"CVE-2026-31393"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-03T16:16:37Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Validate L2CAP_INFO_RSP payload length before access\n\nl2cap_information_rsp() checks that cmd_len covers the fixed\nl2cap_info_rsp header (type + result, 4 bytes) but then reads\nrsp-\u003edata without verifying that the payload is present:\n\n - L2CAP_IT_FEAT_MASK calls get_unaligned_le32(rsp-\u003edata), which reads\n 4 bytes past the header (needs cmd_len \u003e= 8).\n\n - L2CAP_IT_FIXED_CHAN reads rsp-\u003edata[0], 1 byte past the header\n (needs cmd_len \u003e= 5).\n\nA truncated L2CAP_INFO_RSP with result == L2CAP_IR_SUCCESS triggers an\nout-of-bounds read of adjacent skb data.\n\nGuard each data access with the required payload length check. If the\npayload is too short, skip the read and let the state machine complete\nwith safe defaults (feat_mask and remote_fixed_chan remain zero from\nkzalloc), so the info timer cleanup and l2cap_conn_start() still run\nand the connection is not stalled.",
"id": "GHSA-cpmg-r9cr-q8pj",
"modified": "2026-04-27T15:30:31Z",
"published": "2026-04-03T18:31:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31393"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/187e6fe939295be36063a1d91f8bebee04399a8c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3b646516cba2ebc4b51a72954903326e7c1e443f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5229e7d15771eac2b5886bfb1f976aea0c1eec14"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/807bd1258453c4c83f6ae9dbc1e7b44860ff40d0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9aeacde4da0f02d42fd968fd32f245828b230171"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/db2872d054e467810078e2b9f440a5b326a601b2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/dd815e6e3918dc75a49aaabac36e4f024d675101"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e7ff754e339e3d5ce29aa9f95352d0186df8fbd9"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-CPMJ-3VWJ-2QGV
Vulnerability from github – Published: 2022-05-12 00:00 – Updated: 2022-05-21 00:01Acrobat Reader DC version 22.001.2011x (and earlier), 20.005.3033x (and earlier) and 17.012.3022x (and earlier) are affected by an out-of-bounds read vulnerability when parsing a crafted file, which could result in a read past the end of an allocated memory structure. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
{
"affected": [],
"aliases": [
"CVE-2022-28252"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-05-11T18:15:00Z",
"severity": "MODERATE"
},
"details": "Acrobat Reader DC version 22.001.2011x (and earlier), 20.005.3033x (and earlier) and 17.012.3022x (and earlier) are affected by an out-of-bounds read vulnerability when parsing a crafted file, which could result in a read past the end of an allocated memory structure. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-cpmj-3vwj-2qgv",
"modified": "2022-05-21T00:01:15Z",
"published": "2022-05-12T00:00:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-28252"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb22-16.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-CPPF-R7WR-43R2
Vulnerability from github – Published: 2022-05-24 16:51 – Updated: 2024-04-04 01:21Delta Electronics CNCSoft ScreenEditor, Versions 1.00.89 and prior. Multiple out-of-bounds read vulnerabilities may cause information disclosure due to lacking user input validation for processing project files.
{
"affected": [],
"aliases": [
"CVE-2019-10992"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-07-24T15:15:00Z",
"severity": "MODERATE"
},
"details": "Delta Electronics CNCSoft ScreenEditor, Versions 1.00.89 and prior. Multiple out-of-bounds read vulnerabilities may cause information disclosure due to lacking user input validation for processing project files.",
"id": "GHSA-cppf-r7wr-43r2",
"modified": "2024-04-04T01:21:50Z",
"published": "2022-05-24T16:51:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10992"
},
{
"type": "WEB",
"url": "https://www.us-cert.gov/ics/advisories/icsa-19-192-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-CPQF-X9HP-MRJ7
Vulnerability from github – Published: 2022-03-17 00:00 – Updated: 2022-03-17 00:00Adobe Bridge version 11.1.1 (and earlier) is affected by an out-of-bounds read vulnerability when parsing a crafted .jpe file, which could result in a read past the end of an allocated memory structure. An attacker could leverage this vulnerability to execute code in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
{
"affected": [],
"aliases": [
"CVE-2021-42719"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-03-16T15:15:00Z",
"severity": "HIGH"
},
"details": "Adobe Bridge version 11.1.1 (and earlier) is affected by an out-of-bounds read vulnerability when parsing a crafted .jpe file, which could result in a read past the end of an allocated memory structure. An attacker could leverage this vulnerability to execute code 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-cpqf-x9hp-mrj7",
"modified": "2022-03-17T00:00:27Z",
"published": "2022-03-17T00:00:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-42719"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/bridge/apsb21-94.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-CPRJ-G8XP-69PF
Vulnerability from github – Published: 2022-05-13 01:48 – Updated: 2022-05-13 01:48The bdecode function in bdecode.cpp in libtorrent 1.1.3 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted file.
{
"affected": [],
"aliases": [
"CVE-2017-9847"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-06-24T17:29:00Z",
"severity": "MODERATE"
},
"details": "The bdecode function in bdecode.cpp in libtorrent 1.1.3 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted file.",
"id": "GHSA-cprj-g8xp-69pf",
"modified": "2022-05-13T01:48:09Z",
"published": "2022-05-13T01:48:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-9847"
},
{
"type": "WEB",
"url": "https://github.com/arvidn/libtorrent/issues/2099"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-CPRV-7RGJ-7CH6
Vulnerability from github – Published: 2025-08-06 03:30 – Updated: 2025-08-06 03:30Out-of-bounds access vulnerability in the audio codec module. Impact: Successful exploitation of this vulnerability may affect availability.
{
"affected": [],
"aliases": [
"CVE-2025-54609"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-06T02:15:46Z",
"severity": "MODERATE"
},
"details": "Out-of-bounds access vulnerability in the audio codec module.\nImpact: Successful exploitation of this vulnerability may affect availability.",
"id": "GHSA-cprv-7rgj-7ch6",
"modified": "2025-08-06T03:30:24Z",
"published": "2025-08-06T03:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54609"
},
{
"type": "WEB",
"url": "https://consumer.huawei.com/en/support/bulletin/2025/8"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/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.