Bug 883058 (CVE-2012-5621)

Summary:	CVE-2012-5621 ekiga: DoS (crash) after receiving call from other party with not UTF-8 valid name
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	jrusnack, otte, pbrobinson, veillard
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	Ekiga 4.0.0	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-03-04 16:45:58 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:	883063
Bug Blocks:	883070

Description Jan Lieskovsky 2012-12-03 17:25:43 UTC

A denial of service flaw was found in the way Ekiga, a Gnome based SIP/H323 teleconferencing application, processed information from certain OPAL connections (UTF-8 strings were not verified for validity prior showing them). A remote attacker (other party with a not UTF-8 valid name) could use this flaw to cause ekiga executable crash.

Upstream bug report:
[1] https://bugzilla.gnome.org/show_bug.cgi?id=653009

Relevant upstream patch:
[2] http://git.gnome.org/browse/ekiga/commit/?id=7d09807257

References:
[3] http://ftp.gnome.org/pub/gnome/sources/ekiga/4.0/ekiga-4.0.0.news

Comment 1 Jan Lieskovsky 2012-12-03 17:29:29 UTC

This issue did NOT affect the version of the ekiga package, as shipped with Red Hat Enterprise Linux 5.

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This issue affects the version of the ekiga package, as shipped with Red Hat Enterprise Linux 6.

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This issue affects the version of the ekiga package, as shipped with Fedora release of 16. Please schedule an update.

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This issue affects the version of the ekiga package, as shipped with Fedora release of 17 (current version in -stable repository). Version ekiga-4.0.0-1.fc17 already available from the -testing repository is not vulnerable to this issue.

Comment 2 Jan Lieskovsky 2012-12-03 17:30:49 UTC

Created ekiga tracking bugs for this issue

Affects: fedora-16 [bug 883063]

Comment 3 Jan Lieskovsky 2012-12-03 17:37:51 UTC

CVE Request:
  http://www.openwall.com/lists/oss-security/2012/12/03/5

Comment 4 Jan Lieskovsky 2012-12-04 10:49:09 UTC

The CVE identifier of CVE-2012-5621 has been assigned to this issue:
  http://www.openwall.com/lists/oss-security/2012/12/04/3

Comment 6 Peter Robinson 2013-01-10 07:31:34 UTC

Are we sure that 4.0.0 isn't vulnerable?

This is the fix in trunk:

http://opalvoip.svn.sourceforge.net/viewvc/opalvoip?view=revision&revision=28824

And updated sample code:

http://opalvoip.svn.sourceforge.net/viewvc/opalvoip/ptlib/trunk/samples/pxml/main.cxx?revision=28826&view=markup

Comment 7 Fedora Update System 2013-03-03 22:34:07 UTC

ptlib-2.10.10-1.fc18, opal-3.10.10-1.fc18, ekiga-4.0.1-1.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 8 Fedora Update System 2013-03-03 22:40:11 UTC

ptlib-2.10.10-1.fc17, opal-3.10.10-1.fc17, ekiga-4.0.1-1.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.