----------------------------------------------------------------------

The Secunia CSI 5.0 Beta - now available for testing
Find out more, take a free test drive, and share your opinion with us: 
http://secunia.com/blog/242 

----------------------------------------------------------------------

TITLE:
Linux Kernel "perf" Privilege Escalation Weakness

SECUNIA ADVISORY ID:
SA45489

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/45489/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=45489

RELEASE DATE:
2011-08-13

DISCUSS ADVISORY:
http://secunia.com/advisories/45489/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/45489/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=45489

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A weakness has been reported in the Linux Kernel, which can be
exploited by malicious, local users to gain escalated privileges.

The weakness is caused due to the perf utility loading the
configuration file from the current directory, which can be exploited
to e.g. gain escalated privileges by tricking a user into running the
perf utility in a directory containing a malicious configuration
file.

SOLUTION:
Fixed in the GIT repository.

PROVIDED AND/OR DISCOVERED BY:
Reported by Christian Ohm in a Debian bug.

ORIGINAL ADVISORY:
Debian Bug #632923:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=632923

GIT commit:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=aba8d056078e47350d85b06a9cabd5afcc4b72ea

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

----------------------------------------------------------------------

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

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

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

----------------------------------------------------------------------

Unsubscribe: Secunia Security Advisories
http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org

----------------------------------------------------------------------