Debian Security Advisory

DLA-652-1 qemu -- LTS security update

Date Reported:
11 Oct 2016
Affected Packages:
qemu
Vulnerable:
Yes
Security database references:
In Mitre's CVE dictionary: CVE-2016-7161, CVE-2016-7170, CVE-2016-7908.
More information:

Multiple vulnerabilities have been found in QEMU:

  • CVE-2016-7161

    Heap-based buffer overflow in the .receive callback of xlnx.xps-ethernetlite in QEMU (aka Quick Emulator) allows attackers to execute arbitrary code on the QEMU host via a large ethlite packet.

  • CVE-2016-7170

    The vmsvga_fifo_run function in hw/display/vmware_vga.c in QEMU (aka Quick Emulator) is vulnerable to an OOB memory access.

  • CVE-2016-7908

    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.

For Debian 7 Wheezy, these problems have been fixed in version 1.1.2+dfsg-6+deb7u16.

We recommend that you upgrade your qemu packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS