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.
11375 vulnerabilities reference this CWE, most recent first.
GHSA-2VXJ-PXVW-7HX9
Vulnerability from github – Published: 2025-08-12 21:31 – Updated: 2025-08-12 21:31
VLAI
Details
Substance3D - Modeler versions 1.22.0 and earlier are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2025-54199"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-12T21:15:38Z",
"severity": "MODERATE"
},
"details": "Substance3D - Modeler versions 1.22.0 and earlier are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-2vxj-pxvw-7hx9",
"modified": "2025-08-12T21:31:22Z",
"published": "2025-08-12T21:31:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54199"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/substance3d-modeler/apsb25-76.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-2W2M-WPX9-M69R
Vulnerability from github – Published: 2025-06-17 15:31 – Updated: 2025-12-11 15:30
VLAI
Details
A flaw was found in the X Rendering extension's handling of animated cursors. If a client provides no cursors, the server assumes at least one is present, leading to an out-of-bounds read and potential crash.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2025-49175"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-17T15:15:45Z",
"severity": "MODERATE"
},
"details": "A flaw was found in the X Rendering extension\u0027s handling of animated cursors. If a client provides no cursors, the server assumes at least one is present, leading to an out-of-bounds read and potential crash.",
"id": "GHSA-2w2m-wpx9-m69r",
"modified": "2025-12-11T15:30:29Z",
"published": "2025-06-17T15:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49175"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10258"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10377"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10378"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10381"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10410"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:9303"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:9304"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:9305"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:9306"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:9392"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:9964"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2025-49175"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2369947"
},
{
"type": "WEB",
"url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/0885e0b26225c90534642fe911632ec0779eebee"
},
{
"type": "WEB",
"url": "https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2024"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/06/msg00028.html"
},
{
"type": "WEB",
"url": "https://www.x.org/wiki/Development/Security"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10342"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10343"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10344"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10346"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10347"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10348"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10349"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10350"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10351"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10352"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10355"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10356"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10360"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10370"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10374"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10375"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:10376"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-2W82-MM6W-3VC9
Vulnerability from github – Published: 2022-05-24 17:05 – Updated: 2023-02-02 21:33
VLAI
Details
A flaw was found with the RHSA-2019:3950 erratum, where it did not fix the CVE-2019-13616 SDL vulnerability. This issue only affects Red Hat SDL packages, SDL versions through 1.2.15 and 2.x through 2.0.9 has a heap-based buffer overflow flaw while copying an existing surface into a new optimized one, due to a lack of validation while loading a BMP image, is possible. An application that uses SDL to parse untrusted input files may be vulnerable to this flaw, which could allow an attacker to make the application crash or execute code.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2019-14906"
],
"database_specific": {
"cwe_ids": [
"CWE-125",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-01-07T21:15:00Z",
"severity": "HIGH"
},
"details": "A flaw was found with the RHSA-2019:3950 erratum, where it did not fix the CVE-2019-13616 SDL vulnerability. This issue only affects Red Hat SDL packages, SDL versions through 1.2.15 and 2.x through 2.0.9 has a heap-based buffer overflow flaw while copying an existing surface into a new optimized one, due to a lack of validation while loading a BMP image, is possible. An application that uses SDL to parse untrusted input files may be vulnerable to this flaw, which could allow an attacker to make the application crash or execute code.",
"id": "GHSA-2w82-mm6w-3vc9",
"modified": "2023-02-02T21:33:44Z",
"published": "2022-05-24T17:05:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-14906"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:4024"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2019-14906"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1777372"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14906"
}
],
"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-2W8M-F4XV-FPWW
Vulnerability from github – Published: 2022-05-24 17:06 – Updated: 2022-10-12 19:00
VLAI
Details
jhead through 3.04 has a heap-based buffer over-read in process_DQT in jpgqguess.c.
Severity
7.1 (High)
{
"affected": [],
"aliases": [
"CVE-2020-6624"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-01-09T01:15:00Z",
"severity": "MODERATE"
},
"details": "jhead through 3.04 has a heap-based buffer over-read in process_DQT in jpgqguess.c.",
"id": "GHSA-2w8m-f4xv-fpww",
"modified": "2022-10-12T19:00:39Z",
"published": "2022-05-24T17:06:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6624"
},
{
"type": "WEB",
"url": "https://bugs.gentoo.org/711220#c3"
},
{
"type": "WEB",
"url": "https://bugs.gentoo.org/876247#c0"
},
{
"type": "WEB",
"url": "https://bugs.launchpad.net/ubuntu/+source/jhead/+bug/1858744"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202007-17"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-2WCH-PP5G-PC57
Vulnerability from github – Published: 2022-05-13 01:29 – Updated: 2022-05-13 01:29
VLAI
Details
The process_file function in reader.c in libdoc through 2017-10-23 has a heap-based buffer over-read that allows attackers to cause a denial of service (application crash) via a crafted file.
Severity
6.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2018-20451"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-12-25T17:29:00Z",
"severity": "MODERATE"
},
"details": "The process_file function in reader.c in libdoc through 2017-10-23 has a heap-based buffer over-read that allows attackers to cause a denial of service (application crash) via a crafted file.",
"id": "GHSA-2wch-pp5g-pc57",
"modified": "2022-05-13T01:29:05Z",
"published": "2022-05-13T01:29:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20451"
},
{
"type": "WEB",
"url": "https://github.com/uvoteam/libdoc/issues/2"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-2WCW-8QC8-CM58
Vulnerability from github – Published: 2022-05-13 01:03 – Updated: 2022-05-13 01:03
VLAI
Details
The print_frame_inst_bytes function in libdwarf before 20160923 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted file.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2016-5031"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-02-17T17:59:00Z",
"severity": "MODERATE"
},
"details": "The print_frame_inst_bytes function in libdwarf before 20160923 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted file.",
"id": "GHSA-2wcw-8qc8-cm58",
"modified": "2022-05-13T01:03:25Z",
"published": "2022-05-13T01:03:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-5031"
},
{
"type": "WEB",
"url": "https://www.prevanders.net/dwarfbug.html"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/05/24/1"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/05/25/1"
}
],
"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-2WF7-7R7R-WRPC
Vulnerability from github – Published: 2022-05-17 02:52 – Updated: 2022-05-17 02:52
VLAI
Details
The Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.28, is vulnerable to an invalid read (of size 8) because of missing a check (in the copy_special_section_fields function) for an invalid sh_link field before attempting to follow it. This vulnerability causes Binutils utilities like strip to crash.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2017-7304"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-03-29T15:59:00Z",
"severity": "HIGH"
},
"details": "The Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.28, is vulnerable to an invalid read (of size 8) because of missing a check (in the copy_special_section_fields function) for an invalid sh_link field before attempting to follow it. This vulnerability causes Binutils utilities like strip to crash.",
"id": "GHSA-2wf7-7r7r-wrpc",
"modified": "2022-05-17T02:52:22Z",
"published": "2022-05-17T02:52:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7304"
},
{
"type": "WEB",
"url": "https://sourceware.org/bugzilla/show_bug.cgi?id=20931"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/97215"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-2WFH-XV6F-6623
Vulnerability from github – Published: 2025-09-18 15:30 – Updated: 2025-12-12 21:31
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
i2c: ismt: Fix an out-of-bounds bug in ismt_access()
When the driver does not check the data from the user, the variable 'data->block[0]' may be very large to cause an out-of-bounds bug.
The following log can reveal it:
[ 33.995542] i2c i2c-1: ioctl, cmd=0x720, arg=0x7ffcb3dc3a20 [ 33.995978] ismt_smbus 0000:00:05.0: I2C_SMBUS_BLOCK_DATA: WRITE [ 33.996475] ================================================================== [ 33.996995] BUG: KASAN: out-of-bounds in ismt_access.cold+0x374/0x214b [ 33.997473] Read of size 18446744073709551615 at addr ffff88810efcfdb1 by task ismt_poc/485 [ 33.999450] Call Trace: [ 34.001849] memcpy+0x20/0x60 [ 34.002077] ismt_access.cold+0x374/0x214b [ 34.003382] __i2c_smbus_xfer+0x44f/0xfb0 [ 34.004007] i2c_smbus_xfer+0x10a/0x390 [ 34.004291] i2cdev_ioctl_smbus+0x2c8/0x710 [ 34.005196] i2cdev_ioctl+0x5ec/0x74c
Fix this bug by checking the size of 'data->block[0]' first.
Severity
7.1 (High)
{
"affected": [],
"aliases": [
"CVE-2022-50394"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-18T14:15:38Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: ismt: Fix an out-of-bounds bug in ismt_access()\n\nWhen the driver does not check the data from the user, the variable\n\u0027data-\u003eblock[0]\u0027 may be very large to cause an out-of-bounds bug.\n\nThe following log can reveal it:\n\n[ 33.995542] i2c i2c-1: ioctl, cmd=0x720, arg=0x7ffcb3dc3a20\n[ 33.995978] ismt_smbus 0000:00:05.0: I2C_SMBUS_BLOCK_DATA: WRITE\n[ 33.996475] ==================================================================\n[ 33.996995] BUG: KASAN: out-of-bounds in ismt_access.cold+0x374/0x214b\n[ 33.997473] Read of size 18446744073709551615 at addr ffff88810efcfdb1 by task ismt_poc/485\n[ 33.999450] Call Trace:\n[ 34.001849] memcpy+0x20/0x60\n[ 34.002077] ismt_access.cold+0x374/0x214b\n[ 34.003382] __i2c_smbus_xfer+0x44f/0xfb0\n[ 34.004007] i2c_smbus_xfer+0x10a/0x390\n[ 34.004291] i2cdev_ioctl_smbus+0x2c8/0x710\n[ 34.005196] i2cdev_ioctl+0x5ec/0x74c\n\nFix this bug by checking the size of \u0027data-\u003eblock[0]\u0027 first.",
"id": "GHSA-2wfh-xv6f-6623",
"modified": "2025-12-12T21:31:31Z",
"published": "2025-09-18T15:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50394"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/03b7ef7a6c5ca1ff553470166b4919db88b810f6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/233348a04becf133283f0076e20b317302de21d9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/39244cc754829bf707dccd12e2ce37510f5b1f8d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4a7bb1d93addb2f67e36fed00a53cb7f270d7b7a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/96c12fd0ec74641295e1c3c34dea3dce1b6c3422"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9ac541a0898e8ec187a3fa7024b9701cffae6bf2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a642469d464b2780a25a49b51ae56623c65eac34"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bfe41d966c860a8ad4c735639d616da270c92735"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cdcbae2c5003747ddfd14e29db9c1d5d7e7c44dd"
}
],
"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-2WFQ-X8G9-PM2C
Vulnerability from github – Published: 2026-05-01 15:30 – Updated: 2026-05-01 18:31
VLAI
Details
An out-of-bounds read vulnerability in VrmlData_IndexedLineSet::TShape in the VRML parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 allows attackers to cause a denial of service via a crafted VRML file. The issue occurs because coordIndex values from parsed input are used as direct array indices without validation against the size of the coordinate array during geometry processing.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-42479"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-01T15:16:43Z",
"severity": "MODERATE"
},
"details": "An out-of-bounds read vulnerability in VrmlData_IndexedLineSet::TShape in the VRML parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 allows attackers to cause a denial of service via a crafted VRML file. The issue occurs because coordIndex values from parsed input are used as direct array indices without validation against the size of the coordinate array during geometry processing.",
"id": "GHSA-2wfq-x8g9-pm2c",
"modified": "2026-05-01T18:31:23Z",
"published": "2026-05-01T15:30:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42479"
},
{
"type": "WEB",
"url": "https://gist.github.com/sgInnora/dfba083d04906283e9c92aea78e2d94a"
}
],
"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-2WGJ-4JRQ-2G66
Vulnerability from github – Published: 2025-01-07 00:31 – Updated: 2025-01-07 18:30
VLAI
Details
An issue in Netis Wifi6 Router NX10 2.0.1.3643 and 2.0.1.3582 and Netis Wifi 11AC Router NC65 3.0.0.3749 and Netis Wifi 11AC Router NC63 3.0.0.3327 and 3.0.0.3503 and Netis Wifi 11AC Router NC21 3.0.0.3800, 3.0.0.3500 and 3.0.0.3329 and Netis Wifi Router MW5360 1.0.1.3442 and 1.0.1.3031 allows a remote attacker to obtain sensitive information via the parameter password at the change admin password page at the router web interface.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2024-48456"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-06T22:15:09Z",
"severity": "HIGH"
},
"details": "An issue in Netis Wifi6 Router NX10 2.0.1.3643 and 2.0.1.3582 and Netis Wifi 11AC Router NC65 3.0.0.3749 and Netis Wifi 11AC Router NC63 3.0.0.3327 and 3.0.0.3503 and Netis Wifi 11AC Router NC21 3.0.0.3800, 3.0.0.3500 and 3.0.0.3329 and Netis Wifi Router MW5360 1.0.1.3442 and 1.0.1.3031 allows a remote attacker to obtain sensitive information via the parameter password at the change admin password page at the router web interface.",
"id": "GHSA-2wgj-4jrq-2g66",
"modified": "2025-01-07T18:30:48Z",
"published": "2025-01-07T00:31:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-48456"
},
{
"type": "WEB",
"url": "https://github.com/users/h00die-gr3y/projects/1/views/1"
}
],
"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
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.