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[ GLSA 201304-01 ] NVIDIA Drivers: Privilege escalation
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PostPosted: Mon Apr 08, 2013 10:26 pm    Post subject: [ GLSA 201304-01 ] NVIDIA Drivers: Privilege escalation Reply with quote

Gentoo Linux Security Advisory

Title: NVIDIA Drivers: Privilege escalation (GLSA 201304-01)
Severity: high
Exploitable: remote
Date: April 08, 2013
Bug(s): #429614, #464248
ID: 201304-01

Synopsis

Two vulnerabilities in NVIDIA drivers may allow a local attacker to
gain escalated privileges.


Background

The NVIDIA drivers provide X11 and GLX support for NVIDIA graphic
boards.


Affected Packages

Package: x11-drivers/nvidia-drivers
Vulnerable: < 304.88
Unaffected: >= 304.88
Architectures: All supported architectures


Description

Two vulnerabilities have been discovered in NVIDIA drivers:
  • A vulnerability has been found in the way NVIDIA drivers handle
    read/write access to GPU device nodes, allowing access to arbitrary
    system memory locations (CVE-2012-4225).
  • A buffer overflow error has been discovered in NVIDIA drivers
    (CVE-2013-0131).
NOTE: Exposure to CVE-2012-4225 is reduced in Gentoo due to 660
permissions being used on the GPU device nodes by default.


Impact

A local attacker could gain escalated privileges.

Workaround

There is no known workaround at this time.

Resolution

All NVIDIA driver users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose
      ">=x11-drivers/nvidia-drivers-304.88"
   


References

CVE-2012-4225
CVE-2013-0131
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