CVE-2013-6436
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…
Does this matter?
Lower severity and a low EPSS score (0.35%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 2.1 LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 0.35% probability · 29th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- redhat/libvirt
- Source
- secalert@redhat.com
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
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.