Security Announcements (Historical)

The following security advisories have been made in accordance with the xen.org security problem response process.

Please contact security@xen.org if you wish to disclose a security vulnerability.

XSA-1 Host crash due to failure to correctly validate PV kernel execution state.

Date

14 March 2011

References

CVE-2011-1166

Advisory

Cannot specify user mode execution without specifying user-mode pagetables. Failure to validate this allows a malicious or buggy 64 bit PV guest to crash the host.

nb: predates vulnerability handling process and therefore no formal announcement

Fixes

xen-unstable.hg: 23034:c79aae866ad8

xen-4.1-testing.hg: 22993:842aed720b84

xen-4.0-testing.hg: 21461:ee088a0b5cb8

XSA-2 PV kernel validation vulnerabilities

Date

9 May 2011

References

CVE-2011-1583

Advisory

http://lists.xen.org/archives/html/xen-devel/2011-05/msg00483.html

Fixes

xen-unstable.hg: 23322:d9982136d8fa

xen-4.1-testing.hg: 23042:e2e575f8b5d9

xen-4.0-testing.hg: 21482:c2adc059e931

XSA-3 VT-d (PCI passthrough) MSI

Date

12 May 2011

References

CVE-2011-1898

Advisory

http://lists.xen.org/archives/html/xen-devel/2011-05/msg00687.html

Fixes

xen-unstable.hg: 23337:cc91832a02c7

xen-4.1-testing.hg: 23046:ed630a821de1

xen-4.0-testing.hg: 21485:b85a9e58ec3a

XSA-4 Xen 3.3 vaddr validation

Date

2 September 2011

References

CVE-2011-2901

Advisory

http://lists.xen.org/archives/html/xen-devel/2011-09/msg00119.html

Fixes

xen-unstable.hg: 23800:72edc40e2942

nb: although the off-by-one error was fixed in the above changeset on versions of Xen prior to 3.3 were vulnerable due to this error.

XSA-5 IOMMU Fault Live lock

Date

12 August 2011

References

CVE-2011-3131

Advisory

http://lists.xen.org/archives/html/xen-devel/2011-08/msg00450.html

Fixes

xen-unstable.hg: 23762:537ed3b74b3f

xen-4.1-testing.hg: 23112:84e3706df07a

xen-4.0-testing.hg: 21535:789ff1a462b8