Bug 984632 (CVE-2013-4123)

Summary:	CVE-2013-4123 squid: Denial of service when processing specially-crafted HTTP requests (SQUID-2013:3)
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	henrik, jonathansteffan, mluscon, thozza, vdanen, vkrizan
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	Squid 3.2.13, Squid 3.3.8	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-08-08 21:19:07 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:	984639, 984642
Bug Blocks:	983666

Description Jan Lieskovsky 2013-07-15 15:16:12 UTC

A denial of service flaw was found in the way Squid, the proxy caching server, used to process port specific information, present in the HTTP Host: header of certain HTTP requests. A remote attacker could provide a specially-crafted HTTP request that, when processed would lead to Squid daemon termination (denial of service).

External References:

http://www.squid-cache.org/Advisories/SQUID-2013_3.txt

Comment 1 Jan Lieskovsky 2013-07-15 15:25:05 UTC

Upstream patches:
[1] http://www.squid-cache.org/Versions/v3/3.2/changesets/squid-3.2-11826.patch
    (against the 3.2.x branch)

[2] http://www.squid-cache.org/Versions/v3/3.3/changesets/squid-3.3-12591.patch
    (against the 3.3.x branch)

Comment 2 Jan Lieskovsky 2013-07-15 15:26:33 UTC

This issue did not affect the versions of the squid package, as shipped with Red Hat Enterprise Linux 5 and 6 (as they did not introduce the vulnerable code part yet).

--

This issue affects the versions of the squid package, as shipped with Fedora release of 17, 18, and 19. Please schedule an update.

Comment 5 Jan Lieskovsky 2013-07-15 15:31:12 UTC

Created squid tracking bugs for this issue:

Affects: fedora-all [bug 984642]

Comment 7 Fedora Update System 2013-08-02 21:49:13 UTC

squid-3.2.13-1.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 8 Fedora Update System 2013-08-02 21:53:02 UTC

squid-3.2.13-1.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.