VAR-200501-0315

Vulnerability from variot - Updated: 2025-04-03 19:42

Postfix on Mac OS X 10.3.x through 10.3.5, with SMTPD AUTH enabled, does not properly clear the username between authentication attempts, which allows users with the longest username to prevent other valid users from being able to authenticate. This may potentially be exploited to deny certain users access to the server. This condition may only occur if SMTPD AUTH has been enabled. This issue reportedly does not affect the upstream release of Postfix but rather only the version distributed with Apple Mac OS X Panther. Apple Mac OS X is a dedicated operating system developed by Apple for Mac computers

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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