Secunia CSI7
Advisories
Research
Forums
Create Profile
Our Commitment
About the Team
Disclosure Policy
SVCRP

Secunia Research: KDE Okular PDB Parsing RLE Decompression Buffer Overflow

====================================================================== 

                     Secunia Research 25/08/2010

    - KDE Okular PDB Parsing RLE Decompression Buffer Overflow -

====================================================================== 
Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

====================================================================== 
1) Affected Software 

* KDE Okular 4.4.5

NOTE: Other versions may also be affected.

====================================================================== 
2) Severity 

Rating: Moderately critical
Impact: System access
Where:  Remote

====================================================================== 
3) Vendor's Description of Software 

"Okular is a universal document viewer based on KPDF for KDE 4.".

Product Link:
http://okular.kde.org/

====================================================================== 
4) Description of Vulnerability

Secunia Research has discovered a vulnerability in KDE Okular, which 
can be exploited by malicious people to potentially compromise a
user's system.

The vulnerability is caused by a boundary error within the RLE
decompression in the "TranscribePalmImageToJPEG()" function in
generators/plucker/unpluck/image.cpp. This can be exploited to cause
a heap-based buffer overflow by e.g. tricking a user into opening a
specially crafted PDB file.

====================================================================== 
5) Solution 

Apply patches. See the vendor's advisory for additional details.
http://www.kde.org/info/security/advisory-20100825-1.txt

====================================================================== 
6) Time Table 

11/08/2010 - Vendor notified.
11/08/2010 - Vendor response.
25/08/2010 - Public disclosure.

====================================================================== 
7) Credits 

Discovered by Stefan Cornelius, Secunia Research.

====================================================================== 
8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2010-2575 for the vulnerability.

====================================================================== 
9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://secunia.com/advisories/business_solutions/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private 
individuals, who are interested in or concerned about IT-security.

http://secunia.com/advisories/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the 
security and reliability of software in general:

http://secunia.com/secunia_research/

Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:

http://secunia.com/corporate/jobs/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/advisories/mailing_lists/

====================================================================== 
10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2010-109/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

======================================================================


 Products Solutions Customers Partner Resources Company
 
 Corporate
Vulnerability Intelligence Manager (VIM)
Corporate Software Inspector (CSI)
Consumer
Personal Software Inspector (PSI)
Online Software Inspector (OSI)
 Industry
Compliance
Technology
Integration
 Customers
Testimonials
 VARS
MSSP
Technology Partners
References
 Reports
Webinars
Events
 About us
Careers
Memberships
Newsroom


 
© 2002-2014 Secunia ApS - Rued Langgaards Vej 8, 4th floor, DK-2300 Copenhagen, Denmark - +45 7020 5144
Terms & Conditions and Copyright - Privacy - Report Vulnerability