====================================================================== Secunia Research 17/04/2009 - CUPS pdftops JBIG2 Symbol Dictionary 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 * CUPS 1.3.9 NOTE: Prior versions may also be affected. ====================================================================== 2) Severity Rating: Moderately critical Impact: System access Where: Local network ====================================================================== 3) Vendor's Description of Software "CUPS is the standards-based, open source printing system developed by Apple Inc. for Mac OS® X and other UNIX®-like operating systems." Product Link: http://www.cups.org/ ====================================================================== 4) Description of Vulnerability Secunia Research has discovered a vulnerability in CUPS, which can be exploited by malicious people to potentially compromise a vulnerable system. The vulnerability is caused due to a boundary error in pdftops while decoding JBIG2 symbol dictionary segments. This can be exploited to cause a heap-based buffer overflow via a specially crafted PDF file. Successful exploitation may allow execution of arbitrary code. ====================================================================== 5) Solution Update to version 1.3.10. ====================================================================== 6) Time Table 26/03/2009 - Vendor notified. 26/03/2009 - vendor-sec notified. 17/04/2009 - Public disclosure. ====================================================================== 7) Credits Discovered by Alin Rad Pop, Secunia Research. ====================================================================== 8) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2009-0195 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/2009-18/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================