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CVE-2015-7971

Published: 30 October 2015

Xen 3.2.x through 4.6.x does not limit the number of printk console messages when logging certain pmu and profiling hypercalls, which allows local guests to cause a denial of service via a sequence of crafted (1) HYPERCALL_xenoprof_op hypercalls, which are not properly handled in the do_xenoprof_op function in common/xenoprof.c, or (2) HYPERVISOR_xenpmu_op hypercalls, which are not properly handled in the do_xenpmu_op function in arch/x86/cpu/vpmu.c.

Priority

Low

Status

Package Release Status
xen
Launchpad, Ubuntu, Debian
precise
Released (4.1.6.1-0ubuntu0.12.04.7)
trusty
Released (4.4.2-0ubuntu0.14.04.3)
upstream Needs triage

vivid
Released (4.5.0-1ubuntu4.3)
wily
Released (4.5.1-0ubuntu1.1)
Binaries built from this source package are in Universe and so are supported by the community.