The Xen hypervisor block backend driver for Linux kernel 2.6.18, when running on a 64-bit host with a 32-bit paravirtualized guest, allows local privileged users in the guest OS to cause a denial of service (host OS crash) via a request that specifies a large number of blocks.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | 2.6.18 (including) | 2.6.18 (including) |
| Red Hat Enterprise Linux 5 | RedHat | kernel-0:2.6.18-53.1.19.el5 | * |
| Linux-source-2.6.22 | Ubuntu | gutsy | * |
| Xen-3.0 | Ubuntu | upstream | * |
| Xen-3.1 | Ubuntu | upstream | * |
| Xen-3.2 | Ubuntu | upstream | * |
| Xen-3.3 | Ubuntu | upstream | * |
References
- http://secunia.com/advisories/30116
- http://secunia.com/advisories/32918
- http://www.redhat.com/support/errata/RHSA-2008-0233.html
- http://www.securityfocus.com/bid/29082
- http://www.ubuntu.com/usn/usn-679-1
- https://bugzilla.redhat.com/show_bug.cgi?id=369531
- https://exchange.xforce.ibmcloud.com/vulnerabilities/42274
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9452
- http://secunia.com/advisories/30116
- http://secunia.com/advisories/32918
- http://www.redhat.com/support/errata/RHSA-2008-0233.html
- http://www.securityfocus.com/bid/29082
- http://www.ubuntu.com/usn/usn-679-1
- https://bugzilla.redhat.com/show_bug.cgi?id=369531
- https://exchange.xforce.ibmcloud.com/vulnerabilities/42274
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9452