Unscored severity · published Aug 28, 2013
CVE-2013-2076
Xen 4.0.x, 4.1.x, and 4.2.x, when running on AMD64 processors, only save/restore the FOP, FIP, and FDP x87 registers in FXSAVE/FXRSTOR when an exception is pending, which allows…
–
CVSS
0.5%
EPSS
No
On KEV
Description
Xen 4.0.x, 4.1.x, and 4.2.x, when running on AMD64 processors, only save/restore the FOP, FIP, and FDP x87 registers in FXSAVE/FXRSTOR when an exception is pending, which allows one domain to determine portions of the state of floating point instructions of other domains, which can be leveraged to obtain sensitive information such as cryptographic keys, a similar vulnerability to CVE-2006-1056. NOTE: this is the documented behavior of AMD64 processors, but it is inconsistent with Intel processors in a security-relevant fashion that was not addressed by the kernels.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XE
Xen · Xen
4.0.0; 4.0.1; 4.0.2; 4.0.3; 4.0.4; 4.2.0; +8 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2013-2076
CVE.org
https://www.cve.org/CVERecord?id=CVE-2013-2076
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
secunia.com
http://secunia.com/advisories/55082
security.gentoo.org
http://security.gentoo.org/glsa/glsa-201309-24.xml
www.debian.org
http://www.debian.org/security/2014/dsa-3006
www.openwall.com
http://www.openwall.com/lists/oss-security/2013/06/03/1
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