Xen 4.1.x and 4.2.x, when the XSA-45 patch is in place, does not properly maintain references on pages stored for deferred cleanup, which allows local PV guest kernels to cause a denial of service (premature page free and hypervisor crash) or possibly gain privileges via unspecified vectors.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Xen | Xen | 4.2.0 (including) | 4.2.0 (including) |
| Xen | Xen | 4.2.1 (including) | 4.2.1 (including) |
| Xen | Xen | 4.2.2 (including) | 4.2.2 (including) |
| Xen | Ubuntu | precise | * |
| Xen | Ubuntu | quantal | * |
| Xen | Ubuntu | raring | * |
| Xen | Ubuntu | upstream | * |
| Xen-3.3 | Ubuntu | lucid | * |
| Xen-3.3 | Ubuntu | upstream | * |
References
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
- http://secunia.com/advisories/55082
- http://security.gentoo.org/glsa/glsa-201309-24.xml
- http://support.citrix.com/article/CTX138134
- http://www.debian.org/security/2014/dsa-3006
- http://www.openwall.com/lists/oss-security/2013/06/26/5
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
- http://secunia.com/advisories/55082
- http://security.gentoo.org/glsa/glsa-201309-24.xml
- http://support.citrix.com/article/CTX138134
- http://www.debian.org/security/2014/dsa-3006
- http://www.openwall.com/lists/oss-security/2013/06/26/5