GLSA 201702-10: NTFS-3G: Privilege escalation

http://security.gentoo.org/

Severity:	normal
Title:	NTFS-3G: Privilege escalation
Date:	02/19/2017
Bugs:	#607912
ID:	201702-10

Synopsis

A vulnerability in NTFS-3G allows local users to gain root privileges.

Background

NTFS-3G is a stable, full-featured, read-write NTFS driver for various operating systems.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
sys-fs/ntfs3g	< 2016.2.22-r2	>= 2016.2.22-r2	All supported architectures

Description

The NTFS-3G driver does not properly clear environment variables before invoking mount or umount.

This flaw is similar to the vulnerability described in “GLSA-201701-19” and “GLSA-201603-04” referenced below but is now implemented in the NTFS-3G driver itself.

Impact

A local user could gain root privileges.

Workaround

There is no known workaround at this time. However, on Gentoo when the “suid” USE flag is not set (which is the default) an attacker cannot exploit the flaw.

Resolution

All NTFS-3G users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=sys-fs/ntfs3g-2016.2.22-r2"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201702-10.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.