Vulnerability CVE-2013-2851
Published: 2013-06-07

Description:
Format string vulnerability in the register_disk function in block/genhd.c in the Linux kernel through 3.9.4 allows local users to gain privileges by leveraging root access and writing format string specifiers to /sys/module/md_mod/parameters/new_array in order to create a crafted /dev/md device name.

See advisories in our WLB2 database:
Topic
Author
Date
High
Linux Kernel block layer & b43 wireless driver format string
Kees Cook
07.06.2013

Type:

CWE-134

 (Uncontrolled Format String)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
6/10
10/10
1.5/10
Exploit range
Attack complexity
Authentication
Local
High
Single time
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Linux -> Linux kernel 

 References:
https://bugzilla.redhat.com/show_bug.cgi?id=969515
http://www.ubuntu.com/usn/USN-1942-1
http://www.ubuntu.com/usn/USN-1941-1
http://www.ubuntu.com/usn/USN-1913-1
http://www.ubuntu.com/usn/USN-1912-1
http://www.openwall.com/lists/oss-security/2013/06/06/13
http://www.debian.org/security/2013/dsa-2766
http://rhn.redhat.com/errata/RHSA-2014-0284.html
http://rhn.redhat.com/errata/RHSA-2013-1783.html
http://rhn.redhat.com/errata/RHSA-2013-1645.html
http://marc.info/?l=linux-kernel&m=137055204522556&w=2
http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00003.html
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