CVE-2014-1642

Description

The IRQ setup in Xen 4.2.x and 4.3.x, when using device passthrough and configured to support a large number of CPUs, frees certain memory that may still be intended for use, which allows local guest administrators to cause a denial of service (memory corruption and hypervisor crash) and possibly execute arbitrary code via vectors related to an out-of-memory error that triggers a (1) use-after-free or (2) double free.

Category

4.4
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.18%
Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory fedoraproject.org Vendor Advisory secunia.com 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://lists.fedoraproject.org/pipermail/package-announce/2014-February/127607.html vendor advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/90649 vdb entry
http://secunia.com/advisories/56557 third party advisory vendor advisory
http://security.gentoo.org/glsa/glsa-201407-03.xml vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127580.html vendor advisory
http://www.openwall.com/lists/oss-security/2014/01/23/4 mailing list
http://osvdb.org/102406 vdb entry
http://www.securitytracker.com/id/1029679 vdb entry
http://www.securityfocus.com/bid/65097 vdb entry
http://xenbits.xen.org/xsa/advisory-83.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2014-1642?
CVE-2014-1642 has been scored as a medium severity vulnerability.
How to fix CVE-2014-1642?
To fix CVE-2014-1642, 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-2014-1642 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2014-1642 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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