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SC World Congress, New York, USA, 16 November 2011
Visit the Secunia booth (#203) and discover how you can improve your handling of third party programs:

http://secunia.com/resources/events/sc_2011/ 

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TITLE:
Linux Kernel "journal_get_superblock()" Denial of Service
Vulnerabilities

SECUNIA ADVISORY ID:
SA46802

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46802/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46802

RELEASE DATE:
2011-11-14

DISCUSS ADVISORY:
http://secunia.com/advisories/46802/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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http://secunia.com/advisories/46802/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=46802

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

The vulnerabilities are caused due to an error within the
"journal_get_superblock()" functions (fs/jbd/journal.c and
fs/jbd2/journal.c) and can be exploited to trigger a "BUG_ON()" by
e.g. mounting specially crafted ext3 images.

SOLUTION:
Fixed in the GIT repository.

PROVIDED AND/OR DISCOVERED BY:
Eryu Guan

ORIGINAL ADVISORY:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=8762202dd0d6e46854f786bdb6fb3780a1625efe

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

DEEP LINKS:
Further details available in Customer Area:
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EXTENDED DESCRIPTION:
Further details available in Customer Area:
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EXTENDED SOLUTION:
Further details available in Customer Area:
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EXPLOIT:
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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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