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TITLE:
Linux Kernel Netlink Message Handling Privilege Escalation
Vulnerability

SECUNIA ADVISORY ID:
SA50323

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/50323/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=50323

RELEASE DATE:
2012-08-22

DISCUSS ADVISORY:
http://secunia.com/advisories/50323/#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/50323/

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=50323

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 vulnerability has been reported in Linux Kernel, which can be
exploited by malicious, local users to perform certain actions with
escalated privileges.

The vulnerability is caused due to all-zero SCM_CREDENTIALS ancillary
data being passed to a receiver in cases where the sender did not
provide it. This can be exploited to spoof Netlink messages and
perform certain actions with escalated privileges.

SOLUTION:
Fixed in the GIT repository.

PROVIDED AND/OR DISCOVERED BY:
Pablo Neira Ayuso

ORIGINAL ADVISORY:
Kernel.org:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=e0e3cea46d31

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/

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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.

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use those supplied by the vendor.

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