GLSA 201805-09: Shadow: security bypass

http://security.gentoo.org/

Severity:	normal
Title:	Shadow: security bypass
Date:	05/22/2018
Bugs:	#647790
ID:	201805-09

Synopsis

A vulnerability found in Shadow may allow local attackers to bypass security restrictions.

Background

Shadow is a set of tools to deal with user accounts.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
sys-apps/shadow	< 4.6	>= 4.6	All supported architectures

Description

A local attacker could possibly bypass security restrictions if an administrator used “group blacklisting” to restrict access to file system paths.

Impact

A local attacker could possibly bypass security restrictions.

Workaround

There is no known workaround at this time.

Resolution

All shadow users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=sys-apps/shadow-4.6"

References

CVE-2018-7169

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201805-09.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.