CVE-2013-6456 — MEDIUM (5.8)

Vulnerability Description

The LXC driver (lxc/lxc_driver.c) in libvirt 1.0.1 through 1.2.1 allows local users to (1) delete arbitrary host devices via the virDomainDeviceDettach API and a symlink attack on /dev in the container; (2) create arbitrary nodes (mknod) via the virDomainDeviceAttach API and a symlink attack on /dev in the container; and cause a denial of service (shutdown or reboot host OS) via the (3) virDomainShutdown or (4) virDomainReboot API and a symlink attack on /dev/initctl in the container, related to "paths under /proc/$PID/root" and the virInitctlSetRunLevel function.

CVSS Score

5.8

MEDIUM

AV:A/AC:M/Au:S/C:N/I:P/A:C

Confidentiality

NONE

Integrity

PARTIAL

Availability

COMPLETE

Affected Products

Vendor	Product	Versions
Redhat	Libvirt	1.0.1
Fedoraproject	Fedora	20

Related Weaknesses (CWE)

CWE-59

References

FAQ

What is CVE-2013-6456?

CVE-2013-6456 is a vulnerability with a CVSS score of 5.8 (MEDIUM). The LXC driver (lxc/lxc_driver.c) in libvirt 1.0.1 through 1.2.1 allows local users to (1) delete arbitrary host devices via the virDomainDeviceDettach API and a symlink attack on /dev in the containe...

How severe is CVE-2013-6456?

CVE-2013-6456 has been rated MEDIUM with a CVSS base score of 5.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2013-6456?

Check the references section above for vendor advisories and patch information. Affected products include: Redhat Libvirt, Fedoraproject Fedora.