CVE-2013-2851

Severity: medium (CVSS 6.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-06-07 · updated 2026-06-16
Weakness: CWE-134

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.

Affected products

Linux kernel: through 3.9.4; 3.9-rc1, 3.9-rc2, 3.9-rc3, 3.9-rc4, 3.9-rc5, 3.9-rc6 (+5)

References

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

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