The backend driver in Xen 3.x allows guest OS users to cause a denial of service via a kernel thread leak, which prevents the device and guest OS from being shut down or create a zombie domain, causes a hang in zenwatch, or prevents unspecified xm commands from working properly, related to (1) netback, (2) blkback, or (3) blktap.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Xen | Citrix | 3.0.2 (including) | 3.0.2 (including) |
| Xen | Citrix | 3.0.3 (including) | 3.0.3 (including) |
| Xen | Citrix | 3.0.4 (including) | 3.0.4 (including) |
| Xen | Citrix | 3.1.3 (including) | 3.1.3 (including) |
| Xen | Citrix | 3.1.4 (including) | 3.1.4 (including) |
| Xen | Citrix | 3.2.0 (including) | 3.2.0 (including) |
| Xen | Citrix | 3.2.1 (including) | 3.2.1 (including) |
| Xen | Citrix | 3.2.2 (including) | 3.2.2 (including) |
| Xen | Citrix | 3.2.3 (including) | 3.2.3 (including) |
| Xen | Citrix | 3.3.0 (including) | 3.3.0 (including) |
| Xen | Citrix | 3.3.1 (including) | 3.3.1 (including) |
| Xen | Citrix | 3.3.2 (including) | 3.3.2 (including) |
| Xen | Citrix | 3.4.0 (including) | 3.4.0 (including) |
| Xen | Citrix | 3.4.1 (including) | 3.4.1 (including) |
| Xen | Citrix | 3.4.2 (including) | 3.4.2 (including) |
| Xen | Citrix | 3.4.3 (including) | 3.4.3 (including) |
| Red Hat Enterprise Linux 5 | RedHat | kernel-0:2.6.18-194.32.1.el5 | * |
| Linux | Ubuntu | hardy | * |
| Linux-ec2 | Ubuntu | maverick | * |
| Linux-mvl-dove | Ubuntu | karmic | * |
References
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00007.html
- http://secunia.com/advisories/42372
- http://secunia.com/advisories/42789
- http://secunia.com/advisories/43056
- http://secunia.com/advisories/46397
- http://www.redhat.com/support/errata/RHSA-2011-0004.html
- http://www.securityfocus.com/archive/1/520102/100/0/threaded
- http://www.securityfocus.com/bid/45039
- http://www.securitytracker.com/id?1024786
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- http://www.vupen.com/english/advisories/2011/0024
- http://www.vupen.com/english/advisories/2011/0213
- http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev/59f097ef181b
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00007.html
- http://secunia.com/advisories/42372
- http://secunia.com/advisories/42789
- http://secunia.com/advisories/43056
- http://secunia.com/advisories/46397
- http://www.redhat.com/support/errata/RHSA-2011-0004.html
- http://www.securityfocus.com/archive/1/520102/100/0/threaded
- http://www.securityfocus.com/bid/45039
- http://www.securitytracker.com/id?1024786
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- http://www.vupen.com/english/advisories/2011/0024
- http://www.vupen.com/english/advisories/2011/0213
- http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev/59f097ef181b