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CVE-2016-7908

Published: 5 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
precise Does not exist

trusty
Released (2.0.0+dfsg-2ubuntu1.30)
upstream Needs triage

xenial
Released (1:2.5+dfsg-5ubuntu10.6)
yakkety
Released (1:2.6.1+dfsg-0ubuntu5.1)
Patches:
upstream: http://git.qemu.org/?p=qemu.git;a=commit;h=070c4b92b8cd5390889716677a0b92444d6e087a
qemu-kvm
Launchpad, Ubuntu, Debian
precise
Released (1.0+noroms-0ubuntu14.31)
trusty Does not exist

upstream Needs triage

xenial Does not exist

yakkety Does not exist