Vulnerability Note VU#125776

Multiple buffer overflows in Mozilla POP3 protocol handler

Original Release date: 17 Sep 2004 | Last revised: 17 Sep 2004


There are multiple buffer overflow vulnerabilities in the Mozilla POP3 protocol handler that could allow a remote attacker to execute arbitrary code.


Post Office Protocol Version 3 (POP3) is a mail protocol that provides a means for retrieving email from a remote server. The Mozilla mail client supports the POP3 protocol. There are multiple vulnerabilities in a number of functions used by the Mozilla POP3 protocol handler. The vulnerable functions include: FreeMsgInfo(), GetXtndXlstMsgid(), GetUidlList(), and GetList(). When processing POP3 responses, a specially crafted response could trigger a buffer overflow condition.


By sending a specially crafted POP3 response to an affected client, a remote attacker could cause the client to crash or potentially execute arbitrary code. Exploitation of this vulnerability would require a user to connect to a malicious POP3 server.



Upgrade as specified by your vendor. This issue has been resolved in Mozilla 1.7.3, Firefox Preview Release, and Thunderbird 0.8.

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
MozillaAffected-16 Sep 2004
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A



This vulnerability was reported by Gael Delalleau.

This document was written by Damon Morda.

Other Information

  • CVE IDs: Unknown
  • Date Public: 29 May 2004
  • Date First Published: 17 Sep 2004
  • Date Last Updated: 17 Sep 2004
  • Severity Metric: 28.69
  • Document Revision: 12


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