CVE-2014-7283

MEDIUM

Description

The xfs_da3_fixhashpath function in fs/xfs/xfs_da_btree.c in the xfs implementation in the Linux kernel before 3.14.2 does not properly compare btree hash values, which allows local users to cause a denial of service (filesystem corruption, and OOPS or panic) via operations on directories that have hash collisions, as demonstrated by rmdir operations.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c88547a8119e3b581318ab65e9b72f27f23e641d

http://marc.info/?l=linux-xfs&m=139590613002926&w=2

http://rhn.redhat.com/errata/RHSA-2014-1943.html

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.2

http://www.openwall.com/lists/oss-security/2014/10/01/29

http://www.securityfocus.com/bid/70261

https://bugzilla.redhat.com/show_bug.cgi?id=1148777

https://github.com/torvalds/linux/commit/c88547a8119e3b581318ab65e9b72f27f23e641d

Details

Source: MITRE

Published: 2014-10-13

Updated: 2014-12-10

Type: CWE-399

Risk Information

CVSS v2.0

Base Score: 4.9

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM