Bug 1334233 (CVE-2016-4553, SQUID-2016:7)

Summary:	CVE-2016-4553 squid: Cache poisoning issue in HTTP Request handling
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dmoppert, henrik, jonathansteffan, jtrutwin, luhliari, psimerda, thozza
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	squid 3.5.18	Doc Type:	Bug Fix
Doc Text:	An input validation flaw was found in the way Squid handled intercepted HTTP Request messages. An attacker could use this flaw to bypass the protection against issues related to CVE-2009-0801, and perform cache poisoning attacks on Squid.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-06-09 12:43:19 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1334251, 1334506, 1334507, 1334508, 1334509
Bug Blocks:	1334247

Description Andrej Nemec 2016-05-09 09:00:32 UTC

Due to incorrect data validation of intercepted HTTP Request messages Squid is vulnerable to clients bypassing the protection against CVE-2009-0801 related issues. This leads to cache poisoning.

External references:

http://www.squid-cache.org/Advisories/SQUID-2016_7.txt

Upstream fix:

http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-14039.patch

Comment 1 Andrej Nemec 2016-05-09 09:20:37 UTC

Created squid tracking bugs for this issue:

Affects: fedora-all [bug 1334251]

Comment 7 errata-xmlrpc 2016-05-31 05:43:11 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:1139 https://access.redhat.com/errata/RHSA-2016:1139

Comment 8 errata-xmlrpc 2016-05-31 05:56:54 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2016:1140 https://access.redhat.com/errata/RHSA-2016:1140

Comment 9 Fedora Update System 2016-07-12 20:27:46 UTC

squid-3.5.19-2.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.

Comment 10 Fedora Update System 2016-07-12 23:52:30 UTC

squid-3.5.10-4.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 11 Doran Moppert 2016-08-24 23:24:49 UTC

This issue has now been publicised as "Host of troubles" aka Cert VU#916855.  Red Hat products were patched in May and July, no further action is needed.

External URL:  https://hostoftroubles.com/