Vulnerability CVE-2003-0540
Published: 2003-08-27   Modified: 2012-02-12

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.

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Wietse venema -> Postfix 
Conectiva -> Linux 

 References:
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000717
http://lists.grok.org.uk/pipermail/full-disclosure/2003-August/007693.html
http://marc.info/?l=bugtraq&m=106001525130257&w=2
http://marc.info/?l=bugtraq&m=106029188614704&w=2
http://www.debian.org/security/2003/dsa-363
http://www.kb.cert.org/vuls/id/895508
http://www.linuxsecurity.com/advisories/engarde_advisory-3517.html
http://www.mandriva.com/security/advisories?name=MDKSA-2003:081
http://www.novell.com/linux/security/advisories/2003_033_postfix.html
http://www.redhat.com/support/errata/RHSA-2003-251.html
http://www.securityfocus.com/bid/8333
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A544
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