GLSA 201612-08: LinuxCIFS utils: Buffer overflow

http://security.gentoo.org/

Severity:	normal
Title:	LinuxCIFS utils: Buffer overflow
Date:	12/04/2016
Bugs:	#552634
ID:	201612-08

Synopsis

A vulnerability in LinuxCIFS utils' "cifscreds" PAM module might allow remote attackers to have an unspecified impact via unknown vectors.

Background

The LinuxCIFS utils are a collection of tools for managing Linux CIFS Client Filesystems.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-fs/cifs-utils	< 6.4	>= 6.4	All supported architectures

Description

A stack-based buffer overflow was discovered in cifskey.c or cifscreds.c in LinuxCIFS, as used in “pam_cifscreds.”

Impact

A remote attacker could exploit this vulnerability to cause an unspecified impact.

Workaround

Don’t use LinuxCIFS utils’ “cifscreds” PAM module. In Gentoo, LinuxCIFS utils’ PAM support is disabled by default unless the “pam” USE flag is enabled.

Resolution

All LinuxCIFS utils users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-fs/cifs-utils-6.4"

References

CVE-2014-2830

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201612-08.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.