|Bugzilla:||1012550: CVE-2013-4368 xen: information leak through outs instruction emulation (XSA-67)|
The MITRE CVE dictionary describes this issue as:
The outs instruction emulation in Xen 3.1.x, 4.2.x, 4.3.x, and earlier, when using FS: or GS: segment override, uses an uninitialized variable as a segment base, which allows local 64-bit PV guests to obtain sensitive information (hypervisor stack content) via unspecified vectors related to stale data in a segment register.
CVSS v2 metrics
|Access Vector:||Adjacent Network|
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
Red Hat security errata
|Red Hat Enterprise Linux version 5 (kernel)||RHSA-2013:1449||October 22, 2013|
Red Hat would like to thank the Xen project for reporting this issue.
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