====================================================================== Secunia Research 12/10/2005 - Novell NetMail NMAP Agent "USER" Buffer Overflow Vulnerability - ====================================================================== Table of Contents Affected Software....................................................1 Severity.............................................................2 Description of Vulnerability.........................................3 Solution.............................................................4 Time Table...........................................................5 Credits..............................................................6 References...........................................................7 About Secunia........................................................8 Verification.........................................................9 ====================================================================== 1) Affected Software Novell NetMail version 3.52C Prior versions may also be affected. ====================================================================== 2) Severity Rating: Less Critical Impact: System access Where: Local Network ====================================================================== 3) Description of Vulnerability Secunia research has discovered a vulnerability in Novell NetMail, which can be exploited by malicious people to compromise a vulnerable system. The vulnerability is caused due to a boundary error in the NMAP (Network Messaging Application Protocol) Agent when handling an overly long user name in the "USER" command. This can be exploited to cause a stack-based buffer overflow and allows arbitrary code execution. Successful exploitation requires valid logon to the NMAP Agent (e.g. if the default NMAP authentication credential has not been changed). For more information: http://secunia.com/SA13377 ====================================================================== 4) Solution Update to version 3.52D. ====================================================================== 5) Time Table 18/07/2005 - Initial vendor notification. 18/07/2005 - Initial vendor reply. 10/10/2005 - Vendor released fixed version. 12/10/2005 - Public disclosure. ====================================================================== 6) Credits Discovered by Tan Chew Keong, Secunia Research. ====================================================================== 7) References Novell: http://support.novell.com/cgi-bin/search/searchtid.cgi?/2972433.htm http://support.novell.com/cgi-bin/search/searchtid.cgi?/2972438.htm http://support.novell.com/cgi-bin/search/searchtid.cgi?/2972340.htm ====================================================================== 8) About Secunia Secunia collects, validates, assesses, and writes advisories regarding all the latest software vulnerabilities disclosed to the public. These advisories are gathered in a publicly available database at the Secunia website: http://secunia.com/ Secunia offers services to our customers enabling them to receive all relevant vulnerability information to their specific system configuration. Secunia offers a FREE mailing list called Secunia Security Advisories: http://secunia.com/secunia_security_advisories/ ====================================================================== 9) Verification Please verify this advisory by visiting the Secunia website: http://secunia.com/secunia_research/2005-23/advisory/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ====================================================================== _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/