Bug 865831 (CVE-2012-4515)

Summary:	CVE-2012-4515 kdelibs: Use-after-free when context menu being used whilst the document DOM is being changed from within JavaScript
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	dvratil, jgrulich, mprpic, security-response-team, than
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-11-16 15:49:57 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:	871541
Bug Blocks:	867301

Description Jan Lieskovsky 2012-10-12 14:37:03 UTC

An use-after-free flaw was found in the way DOM implementation of KDE libraries performed widget rendering for context menus for a given iframe when the iframe was simultaneously being updated by the parent via JavaScript. A remote attacker could provide a specially-crafted web page that, when opened in an application linked against KDE libraries (such as konqueror), would lead to that application crash or, potentially, arbitrary code execution (depending on the state of the process at the moment the no-longer existing process was accessed) with the privileges of the user running the application.

References:
[1] http://www.openwall.com/lists/oss-security/2012/10/10/11
[2] http://www.openwall.com/lists/oss-security/2012/10/11/11

Comment 1 Jan Lieskovsky 2012-10-12 14:38:30 UTC

This issue did NOT affect the version of the kdelibs package, as shipped with Red Hat Enterprise Linux 5 and 6.

Comment 13 Jan Lieskovsky 2012-10-18 11:22:11 UTC

This issue affects the versions of the kdelibs package, as shipped with Fedora release of 16 and 17.

Comment 15 Jan Lieskovsky 2012-10-29 18:30:55 UTC

Statement:

Not vulnerable. This issue did not affect the versions of kdelibs as shipped with Red Hat Enterprise Linux 5 and 6.

Comment 16 Jan Lieskovsky 2012-10-30 16:03:58 UTC

Relevant upstream patch:
[3] http://quickgit.kde.org/index.php?p=kdelibs.git&a=commitdiff&h=4f2eb356f1c23444fff2cfe0a7ae10efe303d6d8

Comment 17 Vincent Danen 2012-10-30 16:29:56 UTC

This is now public:

http://seclists.org/oss-sec/2012/q4/171

Comment 18 Vincent Danen 2012-10-30 16:32:05 UTC

Created kdelibs tracking bugs for this issue

Affects: fedora-all [bug 871541]

Comment 19 Fedora Update System 2012-11-16 07:34:45 UTC

kdelibs-4.8.5-2.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 20 Fedora Update System 2012-11-16 07:37:15 UTC

kdelibs-4.9.2-11.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.