Bug 1308865 (CVE-2016-2390)

Summary:	CVE-2016-2390 squid: incorrect server error handling resulting in denial of service
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	cbuissar, henrik, jonathansteffan, luhliari, psimerda, thozza, yoguma
Target Milestone:	---	Keywords:	Reopened, Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	squid 3.5.14, squid 4.0.6	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-04-05 08:44:44 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:	1308866
Bug Blocks:	1308870

Description Andrej Nemec 2016-02-16 10:26:57 UTC

Due to incorrectly handling server errors Squid is vulnerable to
a denial of service attack when connecting to TLS or SSL servers.
This problem allows any trusted client to perform a denial of
service attack on the Squid service regardless of whether TLS or
SSL is configured for use in the proxy.

Upstream advisory:

http://www.squid-cache.org/Advisories/SQUID-2016_1.txt

CVE request:

http://seclists.org/oss-sec/2016/q1/345

Comment 1 Andrej Nemec 2016-02-16 10:27:20 UTC

Created squid tracking bugs for this issue:

Affects: fedora-all [bug 1308866]

Comment 2 Andrej Nemec 2016-02-16 15:18:56 UTC

CVE assignment:

http://seclists.org/oss-sec/2016/q1/348

Comment 3 Luboš Uhliarik 2016-03-01 12:52:38 UTC

Fix committed to F24 and RAWHIDE.

Comment 7 Cedric Buissart 2016-04-05 08:43:38 UTC

Statement:

This issue did not affect the versions of squid as shipped with Red Hat Enterprise Linux versions 5, 6 and 7, as they are not shipped with a vulnerable version of squid, and no currently backported patch would introduce the bug.