3.4 Low
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
25.7%
The fbld instruction emulation in Xen 3.3.x through 4.3.x does not use the correct variable for the source effective address, which allows local HVM guests to obtain hypervisor stack information by reading the values used by the instruction.
lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
lists.opensuse.org/opensuse-updates/2013-11/msg00009.html
security.gentoo.org/glsa/glsa-201407-03.xml
www.debian.org/security/2014/dsa-3006
www.openwall.com/lists/oss-security/2013/09/30/3