CVE-2015-8744

Publication date 4 January 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

QEMU (aka Quick Emulator) built with a VMWARE VMXNET3 paravirtual NIC emulator support is vulnerable to crash issue. It occurs when a guest sends a Layer-2 packet smaller than 22 bytes. A privileged (CAP_SYS_RAWIO) guest user could use this flaw to crash the QEMU process instance resulting in DoS.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
qemu	15.10 wily	Fixed 1:2.3+dfsg-5ubuntu9.2
	15.04 vivid	Ignored end of life
	14.04 LTS trusty	Fixed 2.0.0+dfsg-2ubuntu1.22
	12.04 LTS precise	Not in release
qemu-kvm	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
qemu	Upstream: http://git.qemu.org/?p=qemu.git;a=commit;h=a7278b36fcab9af469563bd7b

Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-2891-1
QEMU vulnerabilities
3 February 2016