CVE-2011-2519

Description

Xen in the Linux kernel, when running a guest on a host without hardware assisted paging (HAP), allows guest users to cause a denial of service (invalid pointer dereference and hypervisor crash) via the SAHF instruction.

Category

5.5
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.15%
Vendor Advisory redhat.com Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2011/08/30/1 third party advisory mailing list
http://rhn.redhat.com/errata/RHSA-2011-1212.html third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=718882 issue tracking third party advisory
http://xenbits.xen.org/hg/xen-3.1-testing.hg/rev/15644 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2011-2519?
CVE-2011-2519 has been scored as a medium severity vulnerability.
How to fix CVE-2011-2519?
To fix CVE-2011-2519, 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-2011-2519 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-2519 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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