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.
11401 vulnerabilities reference this CWE, most recent first.
GHSA-3R23-64C4-MJ87
Vulnerability from github – Published: 2024-08-14 15:31 – Updated: 2025-11-03 21:31
VLAI
Details
NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module, which might allow an attacker to over-read NGINX worker memory resulting in its termination, using a specially crafted mp4 file. The issue only affects NGINX if it is built with the ngx_http_mp4_module and the mp4 directive is used in the configuration file. Additionally, the attack is possible only if an attacker can trigger the processing of a specially crafted mp4 file with the ngx_http_mp4_module. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Severity
4.7 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-7347"
],
"database_specific": {
"cwe_ids": [
"CWE-125",
"CWE-126"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-14T15:15:31Z",
"severity": "MODERATE"
},
"details": "NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module, which might allow an attacker to over-read NGINX worker memory resulting in its termination, using a specially crafted mp4 file. The issue only affects NGINX if it is built with the ngx_http_mp4_module and the mp4 directive is used in the configuration file. Additionally, the attack is possible only if an attacker can trigger the processing of a specially crafted mp4 file with the ngx_http_mp4_module.\u00a0 Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.",
"id": "GHSA-3r23-64c4-mj87",
"modified": "2025-11-03T21:31:11Z",
"published": "2024-08-14T15:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-7347"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00017.html"
},
{
"type": "WEB",
"url": "https://my.f5.com/manage/s/article/K000140529"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2024/08/14/4"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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-3R2V-V8VM-3G58
Vulnerability from github – Published: 2022-05-13 01:14 – Updated: 2022-05-13 01:14
VLAI
Details
QEMU (aka Quick Emulator) built with the NE2000 device emulation support is vulnerable to an OOB r/w access issue. It could occur while performing 'ioport' r/w operations. A privileged (CAP_SYS_RAWIO) user/process could use this flaw to leak or corrupt QEMU memory bytes.
Severity
7.1 (High)
{
"affected": [],
"aliases": [
"CVE-2015-8743"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-12-29T22:59:00Z",
"severity": "HIGH"
},
"details": "QEMU (aka Quick Emulator) built with the NE2000 device emulation support is vulnerable to an OOB r/w access issue. It could occur while performing \u0027ioport\u0027 r/w operations. A privileged (CAP_SYS_RAWIO) user/process could use this flaw to leak or corrupt QEMU memory bytes.",
"id": "GHSA-3r2v-v8vm-3g58",
"modified": "2022-05-13T01:14:00Z",
"published": "2022-05-13T01:14:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2015-8743"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1264929"
},
{
"type": "WEB",
"url": "https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg00050.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201602-01"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2016/dsa-3469"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2016/dsa-3470"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2016/dsa-3471"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/01/04/1"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/01/04/2"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/79820"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1034574"
}
],
"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:N",
"type": "CVSS_V3"
}
]
}
GHSA-3R35-352R-WRCC
Vulnerability from github – Published: 2022-01-11 00:00 – Updated: 2022-03-17 00:06
VLAI
Details
LibTIFF 4.3.0 has an out-of-bounds read in _TIFFmemcpy in tif_unix.c in certain situations involving a custom tag and 0x0200 as the second word of the DE field.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2022-22844"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-01-10T14:12:00Z",
"severity": "MODERATE"
},
"details": "LibTIFF 4.3.0 has an out-of-bounds read in _TIFFmemcpy in tif_unix.c in certain situations involving a custom tag and 0x0200 as the second word of the DE field.",
"id": "GHSA-3r35-352r-wrcc",
"modified": "2022-03-17T00:06:15Z",
"published": "2022-01-11T00:00:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-22844"
},
{
"type": "WEB",
"url": "https://gitlab.com/libtiff/libtiff/-/issues/355"
},
{
"type": "WEB",
"url": "https://gitlab.com/libtiff/libtiff/-/merge_requests/287"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00001.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202210-10"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20220311-0002"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2022/dsa-5108"
}
],
"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-3R3M-GPWG-QCG3
Vulnerability from github – Published: 2022-05-14 02:06 – Updated: 2022-05-14 02:06
VLAI
Details
Multiple integer overflows in sfnt/ttcmap.c in FreeType before 2.5.4 allow remote attackers to cause a denial of service (out-of-bounds read or memory corruption) or possibly have unspecified other impact via a crafted cmap SFNT table.
{
"affected": [],
"aliases": [
"CVE-2014-9669"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2015-02-08T11:59:00Z",
"severity": "MODERATE"
},
"details": "Multiple integer overflows in sfnt/ttcmap.c in FreeType before 2.5.4 allow remote attackers to cause a denial of service (out-of-bounds read or memory corruption) or possibly have unspecified other impact via a crafted cmap SFNT table.",
"id": "GHSA-3r3m-gpwg-qcg3",
"modified": "2022-05-14T02:06:01Z",
"published": "2022-05-14T02:06:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-9669"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201503-05"
},
{
"type": "WEB",
"url": "http://advisories.mageia.org/MGASA-2015-0083.html"
},
{
"type": "WEB",
"url": "http://code.google.com/p/google-security-research/issues/detail?id=163"
},
{
"type": "WEB",
"url": "http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=602040b1112c9f94d68e200be59ea7ac3d104565"
},
{
"type": "WEB",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-February/150148.html"
},
{
"type": "WEB",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-February/150162.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2015-03/msg00091.html"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2015-0696.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2015/dsa-3188"
},
{
"type": "WEB",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2015:055"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/72986"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2510-1"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2739-1"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-3R5P-42MC-834F
Vulnerability from github – Published: 2023-08-10 15:30 – Updated: 2024-01-25 21:32
VLAI
Details
Adobe Acrobat Reader versions 23.003.20244 (and earlier) and 20.005.30467 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. 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.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2023-38235"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-10T14:15:13Z",
"severity": "MODERATE"
},
"details": "Adobe Acrobat Reader versions 23.003.20244 (and earlier) and 20.005.30467 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. 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-3r5p-42mc-834f",
"modified": "2024-01-25T21:32:12Z",
"published": "2023-08-10T15:30:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-38235"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb23-30.html"
}
],
"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-3R62-695V-X3W8
Vulnerability from github – Published: 2022-04-13 00:00 – Updated: 2022-04-20 00:00
VLAI
Details
The affected product is vulnerable to an out-of-bounds read, which may result in code execution
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-24383"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-04-12T17:15:00Z",
"severity": "HIGH"
},
"details": "The affected product is vulnerable to an out-of-bounds read, which may result in code execution",
"id": "GHSA-3r62-695v-x3w8",
"modified": "2022-04-20T00:00:48Z",
"published": "2022-04-13T00:00:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-24383"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/uscert/ics/advisories/icsa-22-090-03"
}
],
"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-3R7C-93GC-73GW
Vulnerability from github – Published: 2022-05-24 16:46 – Updated: 2022-10-11 19:00
VLAI
Details
Lack of correct bounds checking in Skia in Google Chrome prior to 73.0.3683.75 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page.
Severity
6.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2019-5798"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-05-23T20:29:00Z",
"severity": "MODERATE"
},
"details": "Lack of correct bounds checking in Skia in Google Chrome prior to 73.0.3683.75 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page.",
"id": "GHSA-3r7c-93gc-73gw",
"modified": "2022-10-11T19:00:48Z",
"published": "2022-05-24T16:46:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-5798"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:1308"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:1309"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:1310"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2019/03/stable-channel-update-for-desktop_12.html"
},
{
"type": "WEB",
"url": "https://crbug.com/883596"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00038.html"
},
{
"type": "WEB",
"url": "https://seclists.org/bugtraq/2019/May/67"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3997-1"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2019/dsa-4451"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00002.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00029.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00084.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00085.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-3R8X-R93P-FR32
Vulnerability from github – Published: 2022-05-14 00:53 – Updated: 2025-04-20 03:48
VLAI
Details
In PHP before 5.6.32, 7.x before 7.0.25, and 7.1.x before 7.1.11, an error in the date extension's timelib_meridian handling of 'front of' and 'back of' directives could be used by attackers able to supply date strings to leak information from the interpreter, related to ext/date/lib/parse_date.c out-of-bounds reads affecting the php_parse_date function. NOTE: this is a different issue than CVE-2017-11145.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2017-16642"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-11-07T21:29:00Z",
"severity": "HIGH"
},
"details": "In PHP before 5.6.32, 7.x before 7.0.25, and 7.1.x before 7.1.11, an error in the date extension\u0027s timelib_meridian handling of \u0027front of\u0027 and \u0027back of\u0027 directives could be used by attackers able to supply date strings to leak information from the interpreter, related to ext/date/lib/parse_date.c out-of-bounds reads affecting the php_parse_date function. NOTE: this is a different issue than CVE-2017-11145.",
"id": "GHSA-3r8x-r93p-fr32",
"modified": "2025-04-20T03:48:08Z",
"published": "2022-05-14T00:53:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-16642"
},
{
"type": "WEB",
"url": "https://github.com/derickr/timelib/commit/aa9156006e88565e1f1a5f7cc088b18322d57536"
},
{
"type": "WEB",
"url": "https://github.com/php/php-src/commit/5c0455bf2c8cd3c25401407f158e820aa3b239e1"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:1296"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:2519"
},
{
"type": "WEB",
"url": "https://bugs.php.net/bug.php?id=75055"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20181123-0001"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3566-1"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2018/dsa-4080"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2018/dsa-4081"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/43133"
},
{
"type": "WEB",
"url": "http://php.net/ChangeLog-5.php"
},
{
"type": "WEB",
"url": "http://php.net/ChangeLog-7.php"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/101745"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-3R97-XP9V-83JF
Vulnerability from github – Published: 2022-11-02 19:00 – Updated: 2025-05-05 15:30
VLAI
Details
Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. This can be triggered by arbitrary local users with access to Sudo by entering a password of seven characters or fewer. The impact could vary depending on the compiler and processor architecture.
Severity
7.1 (High)
{
"affected": [],
"aliases": [
"CVE-2022-43995"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-11-02T14:15:00Z",
"severity": "HIGH"
},
"details": "Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. This can be triggered by arbitrary local users with access to Sudo by entering a password of seven characters or fewer. The impact could vary depending on the compiler and processor architecture.",
"id": "GHSA-3r97-xp9v-83jf",
"modified": "2025-05-05T15:30:38Z",
"published": "2022-11-02T19:00:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-43995"
},
{
"type": "WEB",
"url": "https://github.com/sudo-project/sudo/commit/bd209b9f16fcd1270c13db27ae3329c677d48050"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2139911"
},
{
"type": "WEB",
"url": "https://news.ycombinator.com/item?id=33465707"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202211-08"
},
{
"type": "WEB",
"url": "https://www.sudo.ws/security/advisories"
}
],
"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-3R9X-25H6-9V89
Vulnerability from github – Published: 2022-05-24 19:01 – Updated: 2022-05-24 19:01
VLAI
Details
A flaw was found in samba. The Samba smbd file server must map Windows group identities (SIDs) into unix group ids (gids). The code that performs this had a flaw that could allow it to read data beyond the end of the array in the case where a negative cache entry had been added to the mapping cache. This could cause the calling code to return those values into the process token that stores the group membership for a user. The highest threat from this vulnerability is to data confidentiality and integrity.
{
"affected": [],
"aliases": [
"CVE-2021-20254"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-05-05T14:15:00Z",
"severity": "HIGH"
},
"details": "A flaw was found in samba. The Samba smbd file server must map Windows group identities (SIDs) into unix group ids (gids). The code that performs this had a flaw that could allow it to read data beyond the end of the array in the case where a negative cache entry had been added to the mapping cache. This could cause the calling code to return those values into the process token that stores the group membership for a user. The highest threat from this vulnerability is to data confidentiality and integrity.",
"id": "GHSA-3r9x-25h6-9v89",
"modified": "2022-05-24T19:01:24Z",
"published": "2022-05-24T19:01:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20254"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1949442"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3EP2VJ73OVBPVSOSTVOMGIEQA3MWF6F7"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZAF6L2M6CNAJ2YYYGXPWETTW5YLCWTVT"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202105-22"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20210430-0001"
},
{
"type": "WEB",
"url": "https://www.samba.org/samba/security/CVE-2021-20254.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
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.