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Vulnerability · Published Aug 29, 2023 · Assigned by mitre

CVE-2023-39615

Medium 6.5

In plain English

A medium-severity security flaw 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 1.1% (higher than 65% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)1.1%top 34.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

Xmlsoft Libxml2 v2.11.0 was discovered to contain an out-of-bounds read via the xmlSAX2StartElement() function at /libxml2/SAX2.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted XML file. NOTE: the vendor's position is that the product does not support the legacy SAX1 interface with custom callbacks; there is a crash even without crafted input.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8libxml22.9.7-18.el8_9ALSA-2024:0119
AlmaLinux:9libxml22.9.13-5.el9_3ALSA-2023:7747
AlmaLinux:8libxml2-devel2.9.7-18.el8_9ALSA-2024:0119
AlmaLinux:9libxml2-devel2.9.13-5.el9_3ALSA-2023:7747
AlmaLinux:8python3-libxml22.9.7-18.el8_9ALSA-2024:0119
AlmaLinux:9python3-libxml22.9.13-5.el9_3ALSA-2023:7747
Debian:12libxml22.9.14+dfsg-1.3~deb12u2DSA-5949-1
Debian:12libxml22.9.14+dfsg-1.3~deb12u2DEBIAN-CVE-2023-39615
Debian:13libxml22.12.7+dfsg+really2.9.14-1DEBIAN-CVE-2023-39615
Debian:14libxml22.12.7+dfsg+really2.9.14-1DEBIAN-CVE-2023-39615
Rocky Linux:8libxml20:2.9.7-18.el8_9RLSA-2024:0119
Rocky Linux:8libxml20:2.9.7-18.el8RLSA-2024:0119

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References