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TITLE:
Linux Kernel UDF File System Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA49742

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/49742/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=49742

RELEASE DATE:
2012-07-04

DISCUSS ADVISORY:
http://secunia.com/advisories/49742/#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/49742/

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=49742

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:
Two vulnerabilities have been reported in Linux Kernel, which can be
exploited by malicious, local users to cause a DoS (Denial of
Service).

1) An error when loading a sparing table can be exploited to cause a
crash when mounting a specially crafted filesystem.

2) An error in the "udf_load_logicalvol()" function (fs/udf/super.c)
when processing a partition table can be exploited to cause a crash
when mounting a specially crafted filesystem.

SOLUTION:
Fixed in the GIT repository. Please note, Linux Kernel 3.3.x branch
reached EoL (End of Life) in June 2012.

PROVIDED AND/OR DISCOVERED BY:
1) Timo Warns
2) Jan Kara

ORIGINAL ADVISORY:
http://seclists.org/oss-sec/2012/q3/5

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.

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.

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