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CVE-2014-8594

Published: 19 November 2014

The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).

Notes

AuthorNote
mdeslaur
4.0+
Priority

Medium

Status

Package Release Status
xen
Launchpad, Ubuntu, Debian
lucid Does not exist

precise
Released (4.1.6.1-0ubuntu0.12.04.4)
trusty Does not exist
(trusty was released [4.4.1-0ubuntu0.14.04.2])
upstream Needed

utopic
Released (4.4.1-0ubuntu0.14.10.2)
vivid
Released (4.4.1-3ubuntu2)
Binaries built from this source package are in Universe and so are supported by the community.
xen-3.3
Launchpad, Ubuntu, Debian
lucid Not vulnerable

precise Does not exist

trusty Does not exist

upstream Ignored
(reached end-of-life)
utopic Does not exist

vivid Does not exist

Binaries built from this source package are in Universe and so are supported by the community.