The copy_to_user function in the PAL emulation functionality for Xen 3.1.2 and earlier, when running on ia64 systems, allows HVM guest users to access arbitrary physical memory by triggering certain mapping operations.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Xen | Xen | 3.1.2 (including) | 3.1.2 (including) |
| Red Hat Enterprise Linux 5 | RedHat | kernel-0:2.6.18-53.1.6.el5 | * |
| Xen | Ubuntu | dapper | * |
| Xen | Ubuntu | edgy | * |
| Xen-3.0 | Ubuntu | edgy | * |
| Xen-3.0 | Ubuntu | feisty | * |
| Xen-3.1 | Ubuntu | gutsy | * |
| Xen-3.1 | Ubuntu | hardy | * |
| Xen-3.1 | Ubuntu | intrepid | * |
References
- http://osvdb.org/41344
- http://secunia.com/advisories/28146
- http://secunia.com/advisories/28643
- http://www.redhat.com/support/errata/RHSA-2008-0089.html
- http://www.securityfocus.com/bid/26954
- http://xenbits.xensource.com/ext/ia64/xen-unstable.hg?rev/e6069a715fd7
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9840
- http://osvdb.org/41344
- http://secunia.com/advisories/28146
- http://secunia.com/advisories/28643
- http://www.redhat.com/support/errata/RHSA-2008-0089.html
- http://www.securityfocus.com/bid/26954
- http://xenbits.xensource.com/ext/ia64/xen-unstable.hg?rev/e6069a715fd7
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9840