CVE-2016-7908

Published: 05 October 2016

The mcf_fec_do_tx function in hw/net/mcf_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.

Priority

Medium

CVSS 3 base score: 4.4

Status

Package Release Status
qemu
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 16.04 ESM (Xenial Xerus)
Released (1:2.5+dfsg-5ubuntu10.6)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (2.0.0+dfsg-2ubuntu1.30)
Patches:
Upstream: http://git.qemu.org/?p=qemu.git;a=commit;h=070c4b92b8cd5390889716677a0b92444d6e087a
qemu-kvm
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist