Bug 869681 (CVE-2012-4514)

Summary: CVE-2012-4514 kdelibs (khtml): NULL pointer dereference when trying to reuse a frame with null part
Product: [Other] Security Response Reporter: Jan Lieskovsky <jlieskov>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: security-response-team
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: impact=low,public=20121030,reported=20121011,source=oss-security,cvss2=5.0/AV:N/AC:L/Au:N/C:N/I:N/A:P,rhel-5/kdelibs=notaffected,rhel-6/kdelibs=notaffected,fedora-all/kdelibs=affected,cwe=CWE-476[auto]
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-10-24 11:19:02 EDT Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Bug Depends On: 871541    
Bug Blocks: 867301    

Description Jan Lieskovsky 2012-10-24 10:41:46 EDT
A NULL pointer dereference flaw was found in the way HTML implementation of KDE libraries performed processing of HTML pages containing frames with null parts. 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.

Relevant upstream patch:
[1] https://projects.kde.org/projects/kde/kdelibs/repository/revisions/65464349951e0df9b5d80c2eb3cc7458d54923ae

References:
[2] http://www.openwall.com/lists/oss-security/2012/10/10/11
[3] http://www.openwall.com/lists/oss-security/2012/10/11/11
Comment 1 Jan Lieskovsky 2012-10-24 10:42:40 EDT
This issue did NOT affect the versions of the kdelibs package, as shipped with Red Hat Enterprise Linux 5 and 6.
Comment 3 Jan Lieskovsky 2012-10-24 11:19:02 EDT
Statement:

Not a security flaw. Red Hat Security Response Team does not consider a user-assisted end user application crash (such a konqueror) to be a security issue.
Comment 4 Vincent Danen 2012-10-30 12:29:01 EDT
This is now public:

http://seclists.org/oss-sec/2012/q4/171
Comment 5 Vincent Danen 2012-10-30 12:31:49 EDT
Created kdelibs tracking bugs for this issue

Affects: fedora-all [bug 871541]