Off-by-one error in the __addr_ok macro in Xen 3.3 and earlier allows local 64 bit PV guest administrators to cause a denial of service (host crash) via unspecified hypercalls that ignore virtual-address bits.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Xen | Xen | * | 3.3.0 (including) |
| Xen | Xen | 3.0.2 (including) | 3.0.2 (including) |
| Xen | Xen | 3.0.3 (including) | 3.0.3 (including) |
| Xen | Xen | 3.0.4 (including) | 3.0.4 (including) |
| Xen | Xen | 3.1.3 (including) | 3.1.3 (including) |
| Xen | Xen | 3.1.4 (including) | 3.1.4 (including) |
| Xen | Xen | 3.2.0 (including) | 3.2.0 (including) |
| Xen | Xen | 3.2.1 (including) | 3.2.1 (including) |
| Xen | Xen | 3.2.2 (including) | 3.2.2 (including) |
| Xen | Xen | 3.2.3 (including) | 3.2.3 (including) |
| Red Hat Enterprise Linux 5 | RedHat | kernel-0:2.6.18-274.3.1.el5 | * |
| Red Hat Enterprise Linux 5.6 EUS - Server Only | RedHat | kernel-0:2.6.18-238.31.1.el5 | * |
| Xen-3.1 | Ubuntu | hardy | * |
| Xen-3.2 | Ubuntu | hardy | * |
| Xen-3.3 | Ubuntu | lucid | * |
| Xen-3.3 | Ubuntu | maverick | * |
| Xen-3.3 | Ubuntu | natty | * |
References
- http://rhn.redhat.com/errata/RHSA-2011-1212.html
- http://secunia.com/advisories/55082
- http://security.gentoo.org/glsa/glsa-201309-24.xml
- http://www.openwall.com/lists/oss-security/2011/09/02/2
- https://bugzilla.redhat.com/show_bug.cgi?id=728042
- http://rhn.redhat.com/errata/RHSA-2011-1212.html
- http://secunia.com/advisories/55082
- http://security.gentoo.org/glsa/glsa-201309-24.xml
- http://www.openwall.com/lists/oss-security/2011/09/02/2
- https://bugzilla.redhat.com/show_bug.cgi?id=728042