PublicDateAtUSN: 2016-12-23
Candidate: CVE-2016-9921
PublicDate: 2016-12-23 22:59:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9921
 https://lists.gnu.org/archive/html/qemu-devel/2016-12/msg00442.html
 https://ubuntu.com/security/notices/USN-3261-1
Description:
 Quick emulator (Qemu) built with the Cirrus CLGD 54xx VGA Emulator support
 is vulnerable to a divide by zero issue. It could occur while copying VGA
 data when cirrus graphics mode was set to be VGA. A privileged user inside
 guest could use this flaw to crash the Qemu process instance on the host,
 resulting in DoS.
Ubuntu-Description:
Notes:
Bugs:
 https://bugzilla.redhat.com/show_bug.cgi?id=1334398
 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=847960
Priority: low
Discovered-by: Qinghao Tang, Li Qiang, and Jiangxin
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H [6.5 MEDIUM]
 nvd: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H [6.5 MEDIUM]

Patches_qemu-kvm:
upstream_qemu-kvm: needed
precise_qemu-kvm: ignored (reached end-of-life)
precise/esm_qemu-kvm: ignored (end of ESM support, was needed)
trusty_qemu-kvm: DNE
trusty/esm_qemu-kvm: DNE
vivid/ubuntu-core_qemu-kvm: DNE
vivid/stable-phone-overlay_qemu-kvm: DNE
xenial_qemu-kvm: DNE
yakkety_qemu-kvm: DNE
zesty_qemu-kvm: DNE
artful_qemu-kvm: DNE
bionic_qemu-kvm: DNE
cosmic_qemu-kvm: DNE
disco_qemu-kvm: DNE
eoan_qemu-kvm: DNE
focal_qemu-kvm: DNE
groovy_qemu-kvm: DNE
hirsute_qemu-kvm: DNE
devel_qemu-kvm: DNE

Patches_qemu:
 upstream: http://git.qemu-project.org/?p=qemu.git;a=commit;h=4299b90e9ba9ce5ca9024572804ba751aa1a7e70
upstream_qemu: needed
precise_qemu: DNE
precise/esm_qemu: DNE
trusty_qemu: released (2.0.0+dfsg-2ubuntu1.33)
trusty/esm_qemu: released (2.0.0+dfsg-2ubuntu1.33)
vivid/ubuntu-core_qemu: DNE
vivid/stable-phone-overlay_qemu: DNE
xenial_qemu: released (1:2.5+dfsg-5ubuntu10.11)
esm-infra/xenial_qemu: released (1:2.5+dfsg-5ubuntu10.11)
yakkety_qemu: released (1:2.6.1+dfsg-0ubuntu5.4)
zesty_qemu: not-affected (1:2.8+dfsg-3ubuntu2)
artful_qemu: not-affected (1:2.8+dfsg-3ubuntu2)
bionic_qemu: not-affected (1:2.8+dfsg-3ubuntu2)
cosmic_qemu: not-affected (1:2.8+dfsg-3ubuntu2)
disco_qemu: not-affected (1:2.8+dfsg-3ubuntu2)
eoan_qemu: not-affected (1:2.8+dfsg-3ubuntu2)
focal_qemu: not-affected (1:2.8+dfsg-3ubuntu2)
groovy_qemu: not-affected (1:2.8+dfsg-3ubuntu2)
hirsute_qemu: not-affected (1:2.8+dfsg-3ubuntu2)
devel_qemu: not-affected (1:2.8+dfsg-3ubuntu2)