CVE-2014-1895

Description

Off-by-one error in the flask_security_avc_cachestats function in xsm/flask/flask_op.c in Xen 4.2.x and 4.3.x, when the maximum number of physical CPUs are in use, allows local users to cause a denial of service (host crash) or obtain sensitive information from hypervisor memory by leveraging a FLASK_AVC_CACHESTAT hypercall, which triggers a buffer over-read.

Category

5.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.11%
Vendor Advisory opensuse.org Vendor Advisory gentoo.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html vendor advisory
http://security.gentoo.org/glsa/glsa-201407-03.xml vendor advisory
http://xenbits.xen.org/xsa/advisory-85.html patch vendor advisory
http://www.openwall.com/lists/oss-security/2014/02/07/12 mailing list
http://www.openwall.com/lists/oss-security/2014/02/10/6 mailing list

Frequently Asked Questions

What is the severity of CVE-2014-1895?
CVE-2014-1895 has been scored as a medium severity vulnerability.
How to fix CVE-2014-1895?
To fix CVE-2014-1895, 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-2014-1895 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2014-1895 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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