The hypercall_create_continuation function in arch/arm/domain.c in Xen 4.4.x through 4.6.x allows local guest users to cause a denial of service (host crash) via a preemptible hypercall to the multicall interface.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Xen | Xen | 4.4.0 (including) | 4.4.0 (including) |
| Xen | Xen | 4.4.1 (including) | 4.4.1 (including) |
| Xen | Xen | 4.4.2 (including) | 4.4.2 (including) |
| Xen | Xen | 4.4.3 (including) | 4.4.3 (including) |
| Xen | Xen | 4.5.0 (including) | 4.5.0 (including) |
| Xen | Xen | 4.5.1 (including) | 4.5.1 (including) |
| Xen | Xen | 4.5.2 (including) | 4.5.2 (including) |
| Xen | Xen | 4.6.0 (including) | 4.6.0 (including) |
| Xen | Ubuntu | devel | * |
| Xen | Ubuntu | trusty | * |
| Xen | Ubuntu | vivid | * |
| Xen | Ubuntu | wily | * |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html
- http://www.debian.org/security/2015/dsa-3414
- http://www.securitytracker.com/id/1034031
- http://xenbits.xen.org/xsa/advisory-145.html
- https://security.gentoo.org/glsa/201604-03
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html
- http://www.debian.org/security/2015/dsa-3414
- http://www.securitytracker.com/id/1034031
- http://xenbits.xen.org/xsa/advisory-145.html
- https://security.gentoo.org/glsa/201604-03