Launchpad.net

CVE 2012-3494

The set_debugreg hypercall in include/asm-x86/debugreg.h in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when running on x86-64 systems, allows local OS guest users to cause a denial of service (host crash) by writing to the reserved bits of the DR7 debug control register.

Related bugs and status

CVE-2012-3494 (Candidate) is related to these bugs:

Bug #1176209: Import problem caused by duplicate message ID

		In	Importance	Status
1176209	Import problem caused by duplicate message ID	xen (Ubuntu)	Low	Invalid
1176209	Import problem caused by duplicate message ID	xen (Ubuntu Precise)	Low	Fix Released
1176209	Import problem caused by duplicate message ID	xen (Ubuntu Quantal)	Low	Fix Released

Bug #1180396: Xen stable update to 4.1.5

		In	Importance	Status
1180396	Xen stable update to 4.1.5	xen (Ubuntu)	Low	Invalid
1180396	Xen stable update to 4.1.5	xen (Ubuntu Precise)	Medium	Fix Released
1180396	Xen stable update to 4.1.5	xen (Ubuntu Quantal)	Medium	Fix Released

See the

CVE page on Mitre.org for more details.

Launchpad.net

CVE 2012-3494

Related bugs and status

Related bugs

References