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TITLE:
NVIDIA Binary Graphics Driver for Linux Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA22419

VERIFY ADVISORY:
http://secunia.com/advisories/22419/

CRITICAL:
Highly critical

IMPACT:
Privilege escalation, DoS, System access

WHERE:
>From remote

SOFTWARE:
NVIDIA Graphics Drivers for Linux 1.x
http://secunia.com/product/12331/

DESCRIPTION:
Rapid7 has reported a vulnerability in NVIDIA Binary Graphics Driver
for Linux, which can be exploited by malicious, local users to gain
escalated privileges and potentially by malicious people to
compromise a user's system.

A boundary error when performing accelerated rendering of glyphs can
be exploited to cause a buffer overflow via a specially crafted short
sequence of user-supplied glyphs.

Successful exploitation allows execution of arbitrary code with
"root" privileges.

The vulnerability is reported in versions 8774 and 8762. Other
versions may also be affected.

SOLUTION:
Disable accelerated rendering ("RenderAccel" option).

Use another graphics driver.

The vulnerability has reportedly been fixed in the 1.0-9625 beta
driver.

PROVIDED AND/OR DISCOVERED BY:
Derek Abdine, Rapid7.

ORIGINAL ADVISORY:
Rapid7:
http://www.rapid7.com/advisories/R7-0025.jsp

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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