CVE-2012-5513: Input Validation
The XENMEMexchange handler in Xen 4.2 and earlier does not properly check the memory address, which allows local PV guest OS administrators to cause a denial of service (crash) or possibly gain privileges via unspecified vectors that overwrite memory in the hypervisor reserved range.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2012-5513?
CVE-2012-5513 is classified as a high severity vulnerability due to its potential to cause a denial of service or privilege escalation.
How do I fix CVE-2012-5513?
To fix CVE-2012-5513, update your Xen hypervisor to a version later than 4.2.0.
What versions of Xen are affected by CVE-2012-5513?
CVE-2012-5513 affects Xen versions 4.2.0 and earlier, along with specific versions ranging from 3.0.2 to 4.1.3.
What is the impact of CVE-2012-5513 on local PV guest OS administrators?
Local PV guest OS administrators can exploit CVE-2012-5513 to crash the system or potentially gain unauthorized privileges.
Is there a workaround for CVE-2012-5513 if an upgrade is not possible?
Currently, there are no effective workarounds for CVE-2012-5513 other than upgrading to a patched version of Xen.