First published: Tue Dec 17 2013(Updated: )
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.
Credit: secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
debian/libvirt | <=1.0.1~rc1-1<=1.1.4-2~bpo70+1 | |
debian/libvirt | 7.0.0-3+deb11u2 9.0.0-4 10.5.0-1 10.6.0-1 | |
Red Hat Libvirt | =1.0.1 | |
Red Hat Libvirt | =1.0.2 | |
Red Hat Libvirt | =1.0.3 | |
Red Hat Libvirt | =1.0.4 | |
Red Hat Libvirt | =1.0.5 | |
Red Hat Libvirt | =1.0.5.1 | |
Red Hat Libvirt | =1.0.5.2 | |
Red Hat Libvirt | =1.0.5.3 | |
Red Hat Libvirt | =1.0.5.4 | |
Red Hat Libvirt | =1.0.5.5 | |
Red Hat Libvirt | =1.0.5.6 | |
Red Hat Libvirt | =1.0.6 | |
Red Hat Libvirt | =1.1.0 | |
Red Hat Libvirt | =1.1.1 | |
Red Hat Libvirt | =1.1.2 | |
Red Hat Libvirt | =1.1.3 | |
Red Hat Libvirt | =1.1.4 | |
Red Hat Libvirt | =1.2.0 | |
Red Hat Libvirt | =1.2.1 | |
Fedoraproject Fedora | =20 |
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The severity of CVE-2013-6456 is classified as important, indicating potential significant impact on system security.
To fix CVE-2013-6456, upgrade libvirt to version 7.0.0-3+deb11u2, 9.0.0-4, 10.5.0-1, or 10.6.0-1 or higher.
Versions of libvirt from 1.0.1 through 1.2.1 are affected by CVE-2013-6456.
CVE-2013-6456 cannot be exploited remotely as it requires local user access to execute the attack.
CVE-2013-6456 is associated with local user attacks using the virDomainDeviceDetach and virDomainDeviceAttach APIs to manipulate host devices.