Detections
Analytics
CVE-2019-20454
high
Description
An out-of-bounds read was discovered in PCRE before 10.34 when the pattern \X is JIT compiled and used to match specially crafted subjects in non-UTF mode. Applications that use PCRE to parse untrusted input may be vulnerable to this flaw, which would allow an attacker to crash the application. The flaw occurs in do_extuni_no_utf in pcre2_jit_compile.c.
References
https://vcs.pcre.org/pcre2?view=revision&revision=1092
https://security.gentoo.org/glsa/202006-16
https://lists.debian.org/debian-lts-announce/2023/03/msg00014.html
https://bugzilla.redhat.com/show_bug.cgi?id=1735494