Format string error in Linux kernel - CVE-2013-2851
Published: June 7, 2013 / Updated: August 11, 2020
Vulnerability identifier: #VU42791
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2013-2851
CWE-ID: CWE-134
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local #AU# to execute arbitrary code.
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.
How to mitigate CVE-2013-2851
Install update from vendor's website.
Sources
- http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00003.html
- http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00004.html
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
- http://marc.info/?l=linux-kernel&m=137055204522556&w=2
- http://rhn.redhat.com/errata/RHSA-2013-1645.html
- http://rhn.redhat.com/errata/RHSA-2013-1783.html
- http://rhn.redhat.com/errata/RHSA-2014-0284.html
- http://www.debian.org/security/2013/dsa-2766
- http://www.openwall.com/lists/oss-security/2013/06/06/13
- http://www.ubuntu.com/usn/USN-1912-1
- http://www.ubuntu.com/usn/USN-1913-1
- http://www.ubuntu.com/usn/USN-1941-1
- http://www.ubuntu.com/usn/USN-1942-1
- https://bugzilla.redhat.com/show_bug.cgi?id=969515