Out-of-bounds Read Affecting pcre2 package, versions *
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Test your applications- Snyk ID SNYK-UBUNTU1804-PCRE2-548921
- published 14 Feb 2020
- disclosed 14 Feb 2020
Introduced: 14 Feb 2020
CVE-2019-20454 Open this link in a new tabHow to fix?
There is no fixed version for Ubuntu:18.04 pcre2.
NVD Description
Note: Versions mentioned in the description apply only to the upstream pcre2 package and not the pcre2 package as distributed by Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
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
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-20454
- https://security-tracker.debian.org/tracker/CVE-2019-20454
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OQRAHYHLRNMBTPR3KXVM27NSZP3KTOPI/
- https://security.gentoo.org/glsa/202006-16
- https://bugs.exim.org/show_bug.cgi?id=2421
- https://bugs.php.net/bug.php?id=78338
- https://vcs.pcre.org/pcre2?view=revision&revision=1092
- https://bugzilla.redhat.com/show_bug.cgi?id=1735494
- https://lists.debian.org/debian-lts-announce/2023/03/msg00014.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OQRAHYHLRNMBTPR3KXVM27NSZP3KTOPI/