CVE-2013-1920

Description

Xen 4.2.x, 4.1.x, and earlier, when the hypervisor is running "under memory pressure" and the Xen Security Module (XSM) is enabled, uses the wrong ordering of operations when extending the per-domain event channel tracking table, which causes a use-after-free and allows local guest kernels to inject arbitrary events and gain privileges via unspecified vectors.

Category

4.4
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.06%
Vendor Advisory opensuse.org Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory xen.org Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html vendor advisory
http://secunia.com/advisories/55082 third party advisory
http://security.gentoo.org/glsa/glsa-201309-24.xml vendor advisory
http://lists.xen.org/archives/html/xen-announce/2013-04/msg00000.html mailing list patch vendor advisory
http://osvdb.org/92050 vdb entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/83226 vdb entry
http://lists.opensuse.org/opensuse-updates/2013-06/msg00049.html vendor advisory
http://secunia.com/advisories/52857 third party advisory vendor advisory
http://www.securityfocus.com/bid/58880 vdb entry
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00015.html vendor advisory
http://www.securitytracker.com/id/1028388 vdb entry
http://www.openwall.com/lists/oss-security/2013/04/04/7 mailing list

Frequently Asked Questions

What is the severity of CVE-2013-1920?
CVE-2013-1920 has been scored as a medium severity vulnerability.
How to fix CVE-2013-1920?
To fix CVE-2013-1920, 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-2013-1920 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2013-1920 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.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.