GLSA 201701-40: xdelta: User-assisted execution of arbitrary code

http://security.gentoo.org/

Severity:	normal
Title:	xdelta: User-assisted execution of arbitrary code
Date:	01/17/2017
Bugs:	#574408
ID:	201701-40

Synopsis

A buffer overflow in xdelta might allow remote attackers to execute arbitrary code.

Background

Xdelta is a C library and command-line tool for delta compression using VCDIFF/RFC 3284 streams.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-util/xdelta	< 3.0.10	>= 3.0.10	All supported architectures

Description

A buffer overflow can be triggered within xdelta when ran against a malicious input file.

Impact

A remote attacker could coerce the victim to run xdelta against a malicious input file. This may be leveraged by an attacker to crash xdelta and gain control of program execution.

Workaround

There is no known workaround at this time.

Resolution

All xdelta users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-util/xdelta-3.0.10"

References

CVE-2014-9765

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201701-40.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.