CVE-2013-4361

medium

Description

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.

References

http://www.openwall.com/lists/oss-security/2013/09/30/3

http://www.debian.org/security/2014/dsa-3006

http://security.gentoo.org/glsa/glsa-201407-03.xml

http://lists.opensuse.org/opensuse-updates/2013-11/msg00009.html

http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html

Details

Source: Mitre, NVD

Published: 2013-10-01

Updated: 2017-01-07

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Severity: Medium