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Vulnerability · Published May 13, 2024 · Assigned by mitre

CVE-2024-34459

High 7.5

In plain English

A high-severity heap buffer overflow in the libxml2 package (AlmaLinux). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 79% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.8%top 21.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

An issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7. Formatting error messages with xmllint --htmlout can result in a buffer over-read in xmlHTMLPrintFileContext in xmllint.c.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:10libxml22.12.5-10.el10_2.1ALSA-2026:28234
AlmaLinux:8libxml22.9.7-21.el8_10.5ALSA-2026:26354
AlmaLinux:9libxml22.9.13-14.el9_8.1ALSA-2026:28254
AlmaLinux:10libxml2-devel2.12.5-10.el10_2.1ALSA-2026:28234
AlmaLinux:8libxml2-devel2.9.7-21.el8_10.5ALSA-2026:26354
AlmaLinux:9libxml2-devel2.9.13-14.el9_8.1ALSA-2026:28254
AlmaLinux:10libxml2-static2.12.5-10.el10_2.1ALSA-2026:28234
AlmaLinux:10python3-libxml22.12.5-10.el10_2.1ALSA-2026:28234
AlmaLinux:8python3-libxml22.9.7-21.el8_10.5ALSA-2026:26354
AlmaLinux:9python3-libxml22.9.13-14.el9_8.1ALSA-2026:28254
Alpine:v3.20libxml22.12.7-r0ALPINE-CVE-2024-34459
Alpine:v3.21libxml22.12.7-r0ALPINE-CVE-2024-34459
Alpine:v3.22libxml22.12.7-r0ALPINE-CVE-2024-34459
Alpine:v3.23libxml22.12.7-r0ALPINE-CVE-2024-34459
Alpine:v3.24libxml22.12.7-r0ALPINE-CVE-2024-34459
Debian:12libxml22.9.14+dfsg-1.3~deb12u2DEBIAN-CVE-2024-34459
Debian:12libxml22.9.14+dfsg-1.3~deb12u2DSA-5949-1
Debian:13libxml22.12.7+dfsg+really2.9.14-0.4DEBIAN-CVE-2024-34459
Debian:14libxml22.12.7+dfsg+really2.9.14-0.4DEBIAN-CVE-2024-34459
Rocky Linux:10libxml20:2.12.5-10.el10_2.1RLSA-2026:28234
Rocky Linux:8libxml20:2.9.7-21.el8_10.5RLSA-2026:26354
Rocky Linux:9libxml20:2.9.13-14.el9_8.1RLSA-2026:28254
Ubuntu:22.04:LTSlibxml22.9.13+dfsg-1ubuntu0.6USN-7302-1
Ubuntu:22.04:LTSlibxml22.9.13+dfsg-1ubuntu0.5USN-7240-1
Ubuntu:22.04:LTSlibxml22.9.13+dfsg-1ubuntu0.5UBUNTU-CVE-2024-34459
Ubuntu:24.04:LTSlibxml22.9.14+dfsg-1.3ubuntu3.1UBUNTU-CVE-2024-34459
Ubuntu:24.04:LTSlibxml22.9.14+dfsg-1.3ubuntu3.1USN-7240-1
Ubuntu:24.04:LTSlibxml22.9.14+dfsg-1.3ubuntu3.2USN-7302-1

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

Weakness: CWE-122 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References