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Unscored severity · published Nov 23, 2012
CVE-2012-3494
The set_debugreg hypercall in include/asm-x86/debugreg.h in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when running on x86-64 systems, allows local OS guest…
–
CVSS
0.4%
EPSS
No
On KEV
Description
The set_debugreg hypercall in include/asm-x86/debugreg.h in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when running on x86-64 systems, allows local OS guest users to cause a denial of service (host crash) by writing to the reserved bits of the DR7 debug control register.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% 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; 4.0.0; 4.1.0; 4.1.0; 4.2.0; 4.2.0 · source: NVD
XE
Xenserver · Citrix
through 6.0.2; through 6.0.2 · source: NVD
Affected product
XE
Xenserver
Citrix
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2012-3494
CVE.org
https://www.cve.org/CVERecord?id=CVE-2012-3494
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00001.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00003.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00005.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00012.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html
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