Description
The address parser code in Postfix 1.1.12 and earlier allows remote attackers to cause a denial of service (lock) via (1) a malformed envelope address to a local host that would generate a bounce and contains the ".!" string in the MAIL FROM or Errors-To headers, which causes nqmgr to lock up, or (2) via a valid MAIL FROM with a RCPT TO containing a ".!" string, which causes an instance of the SMTP listener to lock up.
CVSS Metrics
- Vector
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- network
- Access Cmplx
- low
- Auth
- none
- Confidentiality
- none
- Integrity
- none
- Availability
- partial
- Weaknesses
- NVD-CWE-Other
Metadata
- Primary Vendor
- WIETSE_VENEMA
- Published
- 8/27/2003
- Last Modified
- 4/3/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
wietse_venema : postfixwietse_venema : postfixwietse_venema : postfixwietse_venema : postfixwietse_venema : postfixwietse_venema : postfixwietse_venema : postfixconectiva : linuxconectiva : linux
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