Published: 16 May 2022
An out-of-bounds read vulnerability was discovered in the PCRE2 library in the compile_xclass_matchingpath() function of the pcre2_jit_compile.c file. This involves a unicode property matching issue in JIT-compiled regular expressions. The issue occurs because the character was not fully read in case-less matching within JIT.
CVSS 3 base score: 9.1
Launchpad, Ubuntu, Debian
upstream: https://github.com/PCRE2Project/pcre2/commit/50a51cb7e67268e6ad417eb07c9de9bfea5cc55a (pcre2-10.40)