CVE-2016-2571

Publication date 27 February 2016

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

http.cc in Squid 3.x before 3.5.15 and 4.x before 4.0.7 proceeds with the storage of certain data after a response-parsing failure, which allows remote HTTP servers to cause a denial of service (assertion failure and daemon exit) via a malformed response.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
squid3	17.10 artful	Not affected
	17.04 zesty	Ignored end of life
	16.10 yakkety	Ignored end of life
	16.04 LTS xenial	Fixed 3.5.12-1ubuntu7.5
	15.10 wily	Fixed 3.3.8-1ubuntu16.2
	14.04 LTS trusty	Fixed 3.3.8-1ubuntu6.6
	12.04 LTS precise	Fixed 3.1.19-1ubuntu3.12.04.6

Notes

mdeslaur

needs substantial backporting

Patch details

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

Package	Patch details
squid3	Upstream: http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-13990.patch Upstream: http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-13991.patch Upstream: http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-13993.patch Upstream: http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-13998.patch

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H