CVE-2023-29469

Severity CVSS v4.0:
Pending analysis
Type:
CWE-415 Double Free
Publication date:
24/04/2023
Last modified:
04/02/2025

Description

An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. This behavior occurs because there is an attempt to use the first byte of an empty string, and any value is possible (not solely the '\0' value).

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* 2.10.4 (excluding)
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*