CVE-2013-2851
First published: Fri May 31 2013(Updated: )
A flaw was found in the way certain disk names were interpreted by the Linux kernel. Block layer uses the "disk_name" field as a format string in a number of places. While this is normally not a problem due to how disk names are created (statically or incrementally), there is currently at least one way to define nearly arbitrary names via md. A privileged (uid 0) local user could potentially use this flaw to execute code at ring0. Acknowledgements: Red Hat would like to thank Kees Cook for reporting this issue.
Credit: chrome-cve-admin@google.com cve-coordination@google.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <=3.9.4 | |
| Linux Kernel | =3.9-rc1 | |
| Linux Kernel | =3.9-rc2 | |
| Linux Kernel | =3.9-rc3 | |
| Linux Kernel | =3.9-rc4 | |
| Linux Kernel | =3.9-rc5 | |
| Linux Kernel | =3.9-rc6 | |
| Linux Kernel | =3.9-rc7 | |
| Linux Kernel | =3.9.0 | |
| Linux Kernel | =3.9.1 | |
| Linux Kernel | =3.9.2 | |
| Linux Kernel | =3.9.3 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.133-1 6.12.22-1 |
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Reference Links
- 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
- http://marc.info/?l=linux-kernel&m=137055204522556&w=2
- https://launchpad.net/bugs/cve/CVE-2013-2851
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=971662
- https://rhn.redhat.com/errata/RHSA-2013-1264.html
- https://rhn.redhat.com/errata/RHSA-2013-1645.html
- https://rhn.redhat.com/errata/RHSA-2013-1783.html
- https://rhn.redhat.com/errata/RHSA-2014-0284.html
- https://security-tracker.debian.org/tracker/CVE-2013-2851
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2851
- https://nvd.nist.gov/vuln/detail/CVE-2013-2851
- https://ubuntu.com/security/CVE-2013-2851
Frequently Asked Questions
What is the severity of CVE-2013-2851?
CVE-2013-2851 has a medium severity rating due to its potential to cause local denial of service.
How do I fix CVE-2013-2851?
To fix CVE-2013-2851, upgrade to a Linux kernel version above 3.9.4 or apply appropriate security patches.
Which versions of the Linux kernel are affected by CVE-2013-2851?
CVE-2013-2851 affects Linux kernel versions up to 3.9.4, including various release candidates of version 3.9.
What kind of attack can be executed due to CVE-2013-2851?
CVE-2013-2851 could allow an attacker to exploit improper disk name handling resulting in a denial of service.
Who should be concerned about CVE-2013-2851?
System administrators using affected versions of the Linux kernel should prioritize patching against CVE-2013-2851.
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