Public exploit available
Public proof-of-concept or exploit code exists (ExploitDB / Metasploit / Nuclei).
CVE-2003-0540
9 documents8 sources
Severity
5.0MEDIUM
EPSS
57.5%
top 1.84%
CISA KEV
Not in KEV
Exploit
PoC available
Public exploit / PoC exists
Affected products
Timeline
PublishedAug 27
Latest updateApr 29
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 vector
AV:N/AC:L/C:N/I:N/A:PExploitability: 10.0 | Impact: 2.9