CVE-2019-20454

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.

Affected products

Alt Linux, Almalinux, Astra Linux, Centos, Pcre, Red Hat, Rocky Linux, Suse

Pcre pcre2

< 10.34

Fix

Available

CVSS 3.1

7.5 HIGH

EPSS

1.6% (73th percentile)

Weakness

CWE-125

NVD status

Modified

Published

2020-02-14

No exploit for CVE-2019-20454 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.