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: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: henrik, jonathansteffan, mluscon, thozza, vdanen, vkrizan
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: impact=moderate,public=20130713,reported=20130713,source=internet,cvss2=5.0/AV:N/AC:L/Au:N/C:N/I:N/A:P,rhel-5/squid=notaffected,rhel-6/squid=notaffected,rhel-7/squid=notaffected,fedora-all/squid=affected
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 17:19:07 EDT Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Bug Depends On: 984639, 984642    
Bug Blocks: 983666    

Description Jan Lieskovsky 2013-07-15 11:16:12 EDT
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:

Comment 1 Jan Lieskovsky 2013-07-15 11:25:05 EDT
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 11:26:33 EDT
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 11:31:12 EDT
Created squid tracking bugs for this issue:

Affects: fedora-all [bug 984642]
Comment 7 Fedora Update System 2013-08-02 17:49:13 EDT
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 17:53:02 EDT
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.