CVE-2013-6436

Severity: low (CVSS 2.1 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-01-07 · updated 2026-06-17
Weakness: CWE-264

Description

The lxcDomainGetMemoryParameters method in lxc/lxc_driver.c in libvirt 1.0.5 through 1.2.0 does not properly check the status of LXC guests when reading memory tunables, which allows local users to cause a denial of service (NULL pointer dereference and libvirtd crash) via a guest in the shutdown status, as demonstrated by the "virsh memtune" command.

Affected products

libvirt: 1.0.5, 1.0.5.1, 1.0.5.2, 1.0.5.3, 1.0.5.4, 1.0.5.5 (+8)

References

http://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=f8c1cb90213508c4f32549023b0572ed774e48aa
http://lists.opensuse.org/opensuse-updates/2014-01/msg00004.html
http://osvdb.org/101485
http://secunia.com/advisories/56245
http://secunia.com/advisories/60895
http://security.gentoo.org/glsa/glsa-201412-04.xml
http://www.ubuntu.com/usn/USN-2093-1
https://www.redhat.com/archives/libvir-list/2013-December/msg01170.html
http://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=f8c1cb90213508c4f32549023b0572ed774e48aa
http://lists.opensuse.org/opensuse-updates/2014-01/msg00004.html
http://osvdb.org/101485
http://secunia.com/advisories/56245

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