CVE-2016-2572

Publication date 27 February 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

http.cc in Squid 4.x before 4.0.7 relies on the HTTP status code 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	15.10 wily	Not affected
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected

Notes

mdeslaur

This CVE is only for the 'Do not use parsing leftovers, such as HTTP response status code' part of the squid-4-14548.patch patch. As such, it is 4.x only.

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