Unscored severity · published Nov 23, 2012
CVE-2012-3516
The GNTTABOP_swap_grant_ref sub-operation in the grant table hypercall in Xen 4.2 and Citrix XenServer 6.0.2 allows local guest kernels or administrators to cause a denial of…
–
CVSS
0.4%
EPSS
No
On KEV
Description
The GNTTABOP_swap_grant_ref sub-operation in the grant table hypercall in Xen 4.2 and Citrix XenServer 6.0.2 allows local guest kernels or administrators to cause a denial of service (host crash) and possibly gain privileges via a crafted grant reference that triggers a write to an arbitrary hypervisor memory location.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XE
Xen · Xen
4.2.0 · source: NVD
XE
Xenserver · Citrix
through 6.0.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2012-3516
CVE.org
https://www.cve.org/CVERecord?id=CVE-2012-3516
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html
Vendor Advisory
http://secunia.com/advisories/50472
Vendor Advisory
http://secunia.com/advisories/50530
Patch
http://support.citrix.com/article/CTX134708
wiki.xen.org
http://wiki.xen.org/wiki/Security_Announcements#XSA-18_grant_table_entry_swaps_have_inadequate_bounds_checking
www.openwall.com
http://www.openwall.com/lists/oss-security/2012/09/05/11
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