CVE-2015-7969

Description

Multiple memory leaks in Xen 4.0 through 4.6.x allow local guest administrators or domains with certain permission to cause a denial of service (memory consumption) via a large number of "teardowns" of domains with the vcpu pointer array allocated using the (1) XEN_DOMCTL_max_vcpus hypercall or the xenoprofile state vcpu pointer array allocated using the (2) XENOPROF_get_buffer or (3) XENOPROF_set_passive hypercall.

Category

4.9
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.10%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory xen.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://support.citrix.com/article/CTX202404
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html vendor advisory
http://www.securitytracker.com/id/1034033 vdb entry
http://xenbits.xen.org/xsa/advisory-149.html vendor advisory
http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html vendor advisory
http://www.debian.org/security/2015/dsa-3414 vendor advisory
http://xenbits.xen.org/xsa/advisory-151.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html vendor advisory
https://security.gentoo.org/glsa/201604-03 vendor advisory
http://www.securityfocus.com/bid/77364 vdb entry

Frequently Asked Questions

What is the severity of CVE-2015-7969?
CVE-2015-7969 has been scored as a medium severity vulnerability.
How to fix CVE-2015-7969?
To fix CVE-2015-7969, 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-2015-7969 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-7969 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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