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Gentoo: GLSA-201712-15 Normal: Linux Kernel Privilege Escalation

gentoo
Calendar Grey February 19, 2017
Dist Gentoo Esm H88
Regional individuals are able to obtain administrator access through NTFS-3G. Upgrade to the most current version to address security vulnerabilities.
A vulnerability in NTFS-3G allows local users to gain root privileges.

Summary

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.

Topics%20covered

Topics Covered

security advisory gentoo privilege escalation local exploit normal severity ntfs-3g

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

[ 1 ] CVE-2017-0358 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-0358 [ 2 ] GLSA-201603-04 https://security.gentoo.org/glsa/201603-04 [ 3 ] GLSA-201701-19 https://security.gentoo.org/glsa/201701-19

Availability

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

Severity: Normal
Title: NTFS-3G: Privilege escalation
Date: February 19, 2017
Bugs: #607912
ID: 201702-10

Topics%20covered

Topics Covered

security advisory gentoo privilege escalation local exploit normal severity ntfs-3g

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.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-fs/ntfs3g < 2016.2.22-r2 >= 2016.2.22-r2

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.

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