CVE-2015-4164

Publication date 15 June 2015

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

The compat_iret function in Xen 3.1 through 4.5 iterates the wrong way through a loop, which allows local 32-bit PV guest administrators to cause a denial of service (large loop and system hang) via a hypercall_iret call with EFLAGS.VM set.

Status

Package Ubuntu Release Status
xen 15.10 wily
Not affected
15.04 vivid
Fixed 4.5.0-1ubuntu4.2
14.10 utopic Ignored end of life
14.04 LTS trusty
Fixed 4.4.2-0ubuntu0.14.04.2
12.04 LTS precise
Fixed 4.1.6.1-0ubuntu0.12.04.6