CVE-2015-2756
Published: 01 April 2015
QEMU, as used in Xen 3.3.x through 4.5.x, does not properly restrict access to PCI command registers, which might allow local HVM guest users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response.
Priority
Low
Status
| Package | Release | Status |
|---|---|---|
|
qemu Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(2.0.0+dfsg-2ubuntu1.11)
|
|
|
Patches: Upstream: http://git.qemu.org/?p=qemu.git;a=commit;h=81b23ef82cd1be29ca3d69ab7e98b5b5e55926ce |
||
|
qemu-kvm Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
xen Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was released [4.4.1-0ubuntu0.14.04.5])
|
|
| Binaries built from this source package are in Universe and so are supported by the community. | ||
|
xen-3.3 Launchpad, Ubuntu, Debian |
Upstream |
Ignored
(reached end-of-life)
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Binaries built from this source package are in Universe and so are supported by the community. | ||
Notes
| Author | Note |
|---|---|
| smb | This is a qemu change which is part of the xen package for the "traditional" qemu. Trusty and newer only provide qemu traditional as a backup but by default use the generic qemu from the archive and Vivid completely drops qemu traditional. So the non-qemut patches in that XSA need to go into qemu. |