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Gentoo Linux Security Advisory 202006-16

Gentoo Linux Security Advisory 202006-16
Posted Jun 15, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202006-16 - A vulnerability in PCRE2 could lead to a Denial of Service condition. Versions less than 10.34 are affected.

tags | advisory, denial of service
systems | linux, gentoo
advisories | CVE-2019-20454
MD5 | af3a7e2eef13bd728d3ad0f3a60bad17

Gentoo Linux Security Advisory 202006-16

Change Mirror Download
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Gentoo Linux Security Advisory GLSA 202006-16
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https://security.gentoo.org/
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Severity: Normal
Title: PCRE2: Denial of service
Date: June 15, 2020
Bugs: #717800
ID: 202006-16

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Synopsis
========

A vulnerability in PCRE2 could lead to a Denial of Service condition.

Background
==========

PCRE2 is a project based on PCRE (Perl Compatible Regular Expressions)
which has a new and revised API.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-libs/pcre2 < 10.34 >= 10.34

Description
===========

PCRE2 has a flaw when handling JIT-compiled regex using the \X pattern.

Impact
======

An attacker could cause a possible Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All PCRE2 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-libs/pcre2-10.34"

References
==========

[ 1 ] CVE-2019-20454
https://nvd.nist.gov/vuln/detail/CVE-2019-20454

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202006-16

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2020 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5
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