GLSA 201706-11: PCRE library: Denial of Service

http://security.gentoo.org/

Severity:	normal
Title:	PCRE library: Denial of Service
Date:	06/06/2017
Bugs:	#609592
ID:	201706-11

Synopsis

A vulnerability in PCRE library allows remote attackers to cause a Denial of Service condition.

Background

PCRE library is a set of functions that implement regular expression pattern matching using the same syntax and semantics as Perl 5.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-libs/libpcre	< 8.40-r1	>= 8.40-r1	All supported architectures

Description

It was found that the compile_bracket_matchingpath function in pcre_jit_compile.c in PCRE library is vulnerable to an out-of-bounds read.

Impact

A remote attacker could possibly cause a Denial of Service condition via a special crafted regular expression.

Workaround

There is no known workaround at this time.

Resolution

All PCRE library users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-libs/libpcre-8.40-r1"

References

CVE-2017-6004

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201706-11.xml

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.