CVE-2013-1442

Description

Xen 4.0 through 4.3.x, when using AVX or LWP capable CPUs, does not properly clear previous data from registers when using an XSAVE or XRSTOR to extend the state components of a saved or restored vCPU after touching other restored extended registers, which allows local guest OSes to obtain sensitive information by reading the registers.

Category

1.2
CVSS
Severity: Low
CVSS 2.0 •
EPSS 0.11%
Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory opensuse.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2013/09/25/2 mailing list
http://www.securitytracker.com/id/1029090 vdb entry
http://security.gentoo.org/glsa/glsa-201407-03.xml vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html vendor advisory
http://www.debian.org/security/2014/dsa-3006 vendor advisory
http://lists.opensuse.org/opensuse-updates/2013-11/msg00009.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2013-1442?
CVE-2013-1442 has been scored as a low severity vulnerability.
How to fix CVE-2013-1442?
To fix CVE-2013-1442, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-1442 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2013-1442 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.