This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2019-20454 →

DEBIAN-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...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 pcre2

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"10.34-1"}]}]

Debian:13 pcre2

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"10.34-1"}]}]

Debian:14 pcre2

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"10.34-1"}]}]

References

advisory security-tracker.debian.org