Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2003-0540

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
27/08/2003
Last modified:
03/04/2025

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.

Impact

Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:wietse_venema:postfix:1.0.21:*:*:*:*:*:*:*
cpe:2.3:a:wietse_venema:postfix:1.1.11:*:*:*:*:*:*:*
cpe:2.3:a:wietse_venema:postfix:1.1.12:*:*:*:*:*:*:*
cpe:2.3:a:wietse_venema:postfix:1999-09-06:*:*:*:*:*:*:*
cpe:2.3:a:wietse_venema:postfix:1999-12-31:*:*:*:*:*:*:*
cpe:2.3:a:wietse_venema:postfix:2000-02-28:*:*:*:*:*:*:*
cpe:2.3:a:wietse_venema:postfix:2001-11-15:*:*:*:*:*:*:*
cpe:2.3:o:conectiva:linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:conectiva:linux:8.0:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools