Fixed
Created: Apr 11, 2023
Updated: May 5, 2023
Resolved Date: May 5, 2023
Found In Version: 10.21.20.1
Fix Version: 10.21.20.18
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Userspace
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).
https://nvd.nist.gov/vuln/detail/CVE-2023-29469
