Information disclosure in Xen - CVE-2013-1442
Published: October 1, 2013 / Updated: July 28, 2020
Vulnerability identifier: #VU32625
CSH Severity: Low
CVSS v4: 2.1 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2013-1442
CWE-ID: CWE-200
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local non-authenticated attacker to gain access to sensitive information.
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.
Affected software
Xen
xen (Alpine package)
xen (Alpine package)
How to mitigate CVE-2013-1442
Install update from vendor's website.
xen (Alpine package) - update to 4.3.0-r8
External References
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
- http://lists.opensuse.org/opensuse-updates/2013-11/msg00009.html
- http://security.gentoo.org/glsa/glsa-201407-03.xml
- http://www.debian.org/security/2014/dsa-3006
- http://www.openwall.com/lists/oss-security/2013/09/25/2
- http://www.securitytracker.com/id/1029090