Bug 565786 (CVE-2010-0420)

Summary: CVE-2010-0420 pidgin: Finch XMPP MUC Crash
Product: [Other] Security Response Reporter: Tomas Hoger <thoger>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: jlieskov, kreilly, security-response-team, wtogami
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2010-02-22 07:43:50 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: 565911, 565912, 565913, 565914, 566400, 833966    
Bug Blocks:    
Attachments:
Description Flags
Upstream patch to be included in 2.6.6 none

Description Tomas Hoger 2010-02-16 10:01:28 UTC 
Pidgin 2.6.6 is fixing a remote crash bug in Finch (text-based client using libpurple).  If someone changes nick to '<br>' in XMPP MUC (multi-user chat), it causes Finch to crash.

Acknowledgements:

Red Hat would like to thank Sadrul Habib Chowdhury of the Pidgin project for responsibly reporting this issue.
Comment 1 Tomas Hoger 2010-02-16 10:04:46 UTC 
Created attachment 394492 [details]
Upstream patch to be included in 2.6.6

Additionally, following patch changes unescaping of <br> in libpurple:

http://developer.pidgin.im/viewmtn/revision/info/0085c32abf29d034d30feef1ffb1d483e316a9a8
http://developer.pidgin.im/ticket/11318
Comment 3 Jan Lieskovsky 2010-02-18 09:06:19 UTC 
Public now via:
  http://pidgin.im/news/security/
Comment 4 Tomas Hoger 2010-02-18 09:19:17 UTC 
http://pidgin.im/news/security/?id=44
Comment 6 errata-xmlrpc 2010-02-18 16:11:34 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 4
  Red Hat Enterprise Linux 5

Via RHSA-2010:0115 https://rhn.redhat.com/errata/RHSA-2010-0115.html
Comment 7 Fedora Update System 2010-02-18 16:33:20 UTC 
pidgin-2.6.6-1.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/pidgin-2.6.6-1.fc12
Comment 8 Fedora Update System 2010-02-20 00:09:10 UTC 
pidgin-2.6.6-1.fc11 has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 9 Fedora Update System 2010-02-20 00:13:40 UTC 
pidgin-2.6.6-1.fc13 has been pushed to the Fedora 13 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 10 Fedora Update System 2010-02-20 00:26:13 UTC 
pidgin-2.6.6-1.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.