====================================================================== Secunia Research 08/04/2008 - Lotus Notes htmsr.dll Buffer Overflows - ====================================================================== 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 * Lotus Notes 7.0.2 and 7.0.3 NOTE: Other versions may also be affected. ====================================================================== 2) Severity Rating: Highly critical Impact: System compromise Where: Remote ====================================================================== 3) Vendor's Description of Software "Security-rich software that enables businesses to communicate, collaborate and increase productivity." Product Link: http://www-306.ibm.com/software/lotus/ ====================================================================== 4) Description of Vulnerability Secunia Research has discovered some vulnerabilities in Lotus Notes, which can be exploited by malicious people to compromise a user's system. 1) A boundary error within the HTML speed reader (htmsr.dll) when handling links in e.g. the "background" attribute of tags can be exploited to cause a stack-based buffer overflow. 2) A boundary error within the HTML speed reader (htmsr.dll) when handling e.g. the "src" attribute of tags can be exploited to cause a stack-based buffer overflow. 3) A boundary error within the HTML speed reader (htmsr.dll) when handling large chunks of data inside an HTML document can be exploited to cause a heap-based buffer overflow. ====================================================================== 5) Solution Apply patch available from the vendor. ====================================================================== 6) Time Table 07/01/2008 - Vendor notified. 07/01/2008 - Vendor response. 08/04/2008 - Public disclosure. ====================================================================== 7) Credits Discovered by Secunia Research. ====================================================================== 8) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2008-0066 for the vulnerabilities. ====================================================================== 9) About Secunia Secunia offers vulnerability management solutions to corporate customers with verified and reliable vulnerability intelligence relevant to their specific system configuration: http://corporate.secunia.com/ 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/ 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://corporate.secunia.com/secunia_research/33/ Secunia regularly hires new skilled team members. Check the URL below to see currently vacant positions: http://secunia.com/secunia_vacancies/ Secunia offers a FREE mailing list called Secunia Security Advisories: http://secunia.com/secunia_security_advisories/ ====================================================================== 10) Verification Please verify this advisory by visiting the Secunia website: http://secunia.com/secunia_research/2008-3/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================