Bug 1405941 (CVE-2016-10002)

Summary:	CVE-2016-10002 squid: Information disclosure in HTTP request processing
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:	bnater, cbuissar, henrik, jonathansteffan, luhliari, psimerda, thozza, yozone
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	squid 3.5.23, squid 4.0.17	Doc Type:	If docs needed, set a value
Doc Text:	It was found that squid did not properly remove connection specific headers when answering conditional requests using a cached request. A remote attacker could send a specially crafted request to an HTTP server via the squid proxy and steal private data from other connections.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-01-24 10:51:37 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:	1405944, 1412733, 1412734, 1412735, 1412736
Bug Blocks:	1405945

Description Andrej Nemec 2016-12-19 09:06:35 UTC

Due to incorrect HTTP conditional request handling Squid can deliver responses containing private data to clients it should not have reached.

This problem allows a remote attacker to discover private and sensitive information about another clients browsing session. Potentially including credentials which allow access to further sensitive resources.

External References:

http://www.squid-cache.org/Advisories/SQUID-2016_11.txt

References:

http://seclists.org/oss-sec/2016/q4/699

Upstream bug:

http://bugs.squid-cache.org/show_bug.cgi?id=4169

Comment 1 Andrej Nemec 2016-12-19 09:11:51 UTC

Created squid tracking bugs for this issue:

Affects: fedora-all [bug 1405944]

Comment 6 errata-xmlrpc 2017-01-24 10:05:33 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2017:0183 https://rhn.redhat.com/errata/RHSA-2017-0183.html

Comment 7 errata-xmlrpc 2017-01-24 10:05:51 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:0182 https://rhn.redhat.com/errata/RHSA-2017-0182.html