CVE-2011-2901

Description

Off-by-one error in the __addr_ok macro in Xen 3.3 and earlier allows local 64 bit PV guest administrators to cause a denial of service (host crash) via unspecified hypercalls that ignore virtual-address bits.

Category

5.5
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.12%
Vendor Advisory gentoo.org Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://secunia.com/advisories/55082 third party advisory
http://www.openwall.com/lists/oss-security/2011/09/02/2 mailing list
http://security.gentoo.org/glsa/glsa-201309-24.xml vendor advisory
http://rhn.redhat.com/errata/RHSA-2011-1212.html vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=728042

Frequently Asked Questions

What is the severity of CVE-2011-2901?
CVE-2011-2901 has been scored as a medium severity vulnerability.
How to fix CVE-2011-2901?
To fix CVE-2011-2901, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-2901 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-2901 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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