CVE-2016-10003

Publication date 27 January 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Incorrect HTTP Request header comparison in Squid HTTP Proxy 3.5.0.1 through 3.5.22, and 4.0.1 through 4.0.16 results in Collapsed Forwarding feature mistakenly identifying some private responses as being suitable for delivery to multiple clients.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
squid3	16.10 yakkety	Fixed 3.5.12-1ubuntu8.1
	16.04 LTS xenial	Fixed 3.5.12-1ubuntu7.3
	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
squid3	Upstream: http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2016_10_a.patch Upstream: http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-14127.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	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

USN-3192-1
Squid vulnerabilities
6 February 2017