CVE-2017-15268

Publication date 12 October 2017

Last updated 25 August 2025

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

Qemu through 2.10.0 allows remote attackers to cause a memory leak by triggering slow data-channel read operations, related to io/channel-websock.c.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
qemu	17.10 artful	Fixed 1:2.10+dfsg-0ubuntu3.5
	17.04 zesty	Ignored end of life
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected
qemu-kvm	17.10 artful	Not in release
	17.04 zesty	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release

Patch details

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

Package	Patch details
qemu	Upstream: https://git.qemu.org/gitweb.cgi?p=qemu.git;a=commit;h=a7b20a8efa28e5f22c26c06cd06c2f12bc863493

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.5 · High

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	None
Integrity impact	None
Availability impact	High

Scores

Parameter	Value
Base score	7.5 · High
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-3575-1
QEMU vulnerabilities
20 February 2018

Other references

Access our resources on patching vulnerabilities