Vulnerability CVE-2014-0203
Published: 2014-06-23

Description:
The __do_follow_link function in fs/namei.c in the Linux kernel before 2.6.33 does not properly handle the last pathname component during use of certain filesystems, which allows local users to cause a denial of service (incorrect free operations and system crash) via an open system call.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Linux kernel 2.6.32 local denial of service
Al Viro
23.06.2014

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.9/10
6.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Linux -> Linux kernel 

 References:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=86acdca1b63e6890540fa19495cfc708beff3d8b
http://linux.oracle.com/errata/ELSA-2014-0771.html
http://linux.oracle.com/errata/ELSA-2014-3043.html
http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.33
http://www.securityfocus.com/bid/68125
https://bugzilla.redhat.com/show_bug.cgi?id=1094363
https://github.com/torvalds/linux/commit/86acdca1b63e6890540fa19495cfc708beff3d8b
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