CVE-2013-2851

Published: 7 June 2013

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.

From the Ubuntu security team

Kees Cook discovered a format string vulnerability in the Linux kernel's disk block layer. A local user with administrator privileges could exploit this flaw to gain kernel privileges.

Status

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2851
• https://bugzilla.redhat.com/show_bug.cgi?id=969515
• http://www.openwall.com/lists/oss-security/2013/06/06/13
• http://marc.info/?l=linux-kernel&m=137055204522556&w=2
• https://ubuntu.com/security/notices/USN-1912-1
• https://ubuntu.com/security/notices/USN-1913-1
• https://ubuntu.com/security/notices/USN-1933-1
• https://ubuntu.com/security/notices/USN-1934-1
• https://ubuntu.com/security/notices/USN-1932-1
• https://ubuntu.com/security/notices/USN-1931-1
• https://ubuntu.com/security/notices/USN-1935-1
• https://ubuntu.com/security/notices/USN-1936-1
• https://ubuntu.com/security/notices/USN-1942-1
• https://ubuntu.com/security/notices/USN-1941-1
• NVD
• Launchpad
• Debian

Bugs

• https://launchpad.net/bugs/1189832