Upstream information

CVE-2016-9923 at MITRE

Description

Quick Emulator (Qemu) built with the 'chardev' backend support is vulnerable to a use after free issue. It could occur while hotplug and unplugging the device in the guest. A guest user/process could use this flaw to crash a Qemu process on the host resulting in DoS.

SUSE information

Overall state of this security issue: Ignore

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database SUSE
Base Score 2.1 1.5
Vector AV:L/AC:L/Au:N/C:N/I:N/A:P AV:L/AC:M/Au:S/C:N/I:N/A:P
Access Vector Local Local
Access Complexity Low Medium
Authentication None Single
Confidentiality Impact None None
Integrity Impact None None
Availability Impact Partial Partial
CVSS v3 Scores
  National Vulnerability Database
Base Score 6.5
Vector AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Access Vector Local
Access Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality Impact None
Integrity Impact None
Availability Impact High

Note from the SUSE Security Team

Due to difficulty of the backport and the resulting risk of introducing regressions we are currently not planning to backport the change.

SUSE Bugzilla entries: 1014703 [RESOLVED / WONTFIX], 1015145 [RESOLVED / DUPLICATE], 1015148 [RESOLVED / INVALID], 1015154 [RESOLVED / DUPLICATE]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Desktop 12 SP3
  • qemu >= 2.9.0-5.10
  • qemu-block-curl >= 2.9.0-5.10
  • qemu-ipxe >= 1.0.0-5.10
  • qemu-kvm >= 2.9.0-5.10
  • qemu-seabios >= 1.10.2-5.10
  • qemu-sgabios >= 8-5.10
  • qemu-tools >= 2.9.0-5.10
  • qemu-vgabios >= 1.10.2-5.10
  • qemu-x86 >= 2.9.0-5.10
Patchnames:
SUSE Linux Enterprise Desktop 12 SP3 GA qemu
SUSE Linux Enterprise Module for Basesystem 15
  • qemu-tools >= 2.11.1-7.5
Patchnames:
SUSE Linux Enterprise Module for Basesystem 15 GA qemu-tools
SUSE Linux Enterprise Module for Server Applications 15
  • qemu >= 2.11.1-7.5
  • qemu-block-curl >= 2.11.1-7.5
  • qemu-block-iscsi >= 2.11.1-7.5
  • qemu-block-rbd >= 2.11.1-7.5
  • qemu-block-ssh >= 2.11.1-7.5
  • qemu-guest-agent >= 2.11.1-7.5
  • qemu-ipxe >= 1.0.0-7.5
  • qemu-kvm >= 2.11.1-7.5
  • qemu-lang >= 2.11.1-7.5
  • qemu-seabios >= 1.11.0-7.5
  • qemu-sgabios >= 8-7.5
  • qemu-vgabios >= 1.11.0-7.5
  • qemu-x86 >= 2.11.1-7.5
Patchnames:
SUSE Linux Enterprise Module for Server Applications 15 GA qemu
SUSE Linux Enterprise Server 12 SP3
  • qemu >= 2.9.0-5.10
  • qemu-arm >= 2.9.0-5.10
  • qemu-block-curl >= 2.9.0-5.10
  • qemu-block-rbd >= 2.9.0-5.10
  • qemu-block-ssh >= 2.9.0-5.10
  • qemu-guest-agent >= 2.9.0-5.10
  • qemu-ipxe >= 1.0.0-5.10
  • qemu-kvm >= 2.9.0-5.10
  • qemu-lang >= 2.9.0-5.10
  • qemu-ppc >= 2.9.0-5.10
  • qemu-s390 >= 2.9.0-5.10
  • qemu-seabios >= 1.10.2-5.10
  • qemu-sgabios >= 8-5.10
  • qemu-tools >= 2.9.0-5.10
  • qemu-vgabios >= 1.10.2-5.10
  • qemu-x86 >= 2.9.0-5.10
Patchnames:
SUSE Linux Enterprise Server 12 SP3 GA qemu
openSUSE Leap 15.0
  • qemu >= 2.11.1-lp150.6.7
  • qemu-block-curl >= 2.11.1-lp150.6.7
  • qemu-block-rbd >= 2.11.1-lp150.6.7
  • qemu-block-ssh >= 2.11.1-lp150.6.7
  • qemu-guest-agent >= 2.11.1-lp150.6.7
  • qemu-ipxe >= 1.0.0-lp150.6.7
  • qemu-ksm >= 2.11.1-lp150.6.7
  • qemu-seabios >= 1.11.0-lp150.6.7
  • qemu-sgabios >= 8-lp150.6.7
  • qemu-tools >= 2.11.1-lp150.6.7
  • qemu-vgabios >= 1.11.0-lp150.6.7
  • qemu-x86 >= 2.11.1-lp150.6.7
Patchnames:
openSUSE Leap 15.0 GA qemu
openSUSE Leap 42.3
  • qemu >= 2.9.0-30.1
  • qemu-arm >= 2.9.0-30.1
  • qemu-block-curl >= 2.9.0-30.1
  • qemu-block-dmg >= 2.9.0-30.1
  • qemu-block-iscsi >= 2.9.0-30.1
  • qemu-block-rbd >= 2.9.0-30.1
  • qemu-block-ssh >= 2.9.0-30.1
  • qemu-extra >= 2.9.0-30.1
  • qemu-ipxe >= 1.0.0-30.1
  • qemu-ksm >= 2.9.0-30.1
  • qemu-kvm >= 2.9.0-30.1
  • qemu-lang >= 2.9.0-30.1
  • qemu-ppc >= 2.9.0-30.1
  • qemu-s390 >= 2.9.0-30.1
  • qemu-seabios >= 1.10.2-30.1
  • qemu-sgabios >= 8-30.1
  • qemu-tools >= 2.9.0-30.1
  • qemu-vgabios >= 1.10.2-30.1
  • qemu-x86 >= 2.9.0-30.1
Patchnames:
openSUSE Leap 42.3 GA qemu


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
CaaS Platform 1.0 qemu Ignore
CaaS Platform 1.0 xen Ignore
CaaS Platform 2.0 qemu Ignore
CaaS Platform 2.0 xen Ignore
SUSE Linux Enterprise Desktop 12 SP2 qemu Ignore
SUSE Linux Enterprise Desktop 12 SP2 xen Ignore
SUSE Linux Enterprise Desktop 12 SP3 qemu Ignore
SUSE Linux Enterprise Desktop 12 SP3 xen Ignore
SUSE Linux Enterprise Point of Sale 11 SP3 qemu Ignore
SUSE Linux Enterprise SDK 11 SP4 qemu Ignore
SUSE Linux Enterprise SDK 11 SP4 xen Ignore
SUSE Linux Enterprise SDK 12 SP2 xen Ignore
SUSE Linux Enterprise SDK 12 SP3 xen Ignore
SUSE Linux Enterprise Server 11 SP3 LTSS kvm Ignore
SUSE Linux Enterprise Server 11 SP4 kvm Ignore
SUSE Linux Enterprise Server 11 SP4 xen Ignore
SUSE Linux Enterprise Server 12 SP2 qemu Ignore
SUSE Linux Enterprise Server 12 SP2 xen Ignore
SUSE Linux Enterprise Server 12 SP3 qemu Ignore
SUSE Linux Enterprise Server 12 SP3 xen Ignore
SUSE Studio Onsite 1.3 qemu Ignore