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[ GLSA 201206-30 ] sendmail: X.509 NULL spoofing vulnerability
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PostPosted: Mon Jun 25, 2012 9:26 pm    Post subject: [ GLSA 201206-30 ] sendmail: X.509 NULL spoofing vulnerabili Reply with quote

Gentoo Linux Security Advisory

Title: sendmail: X.509 NULL spoofing vulnerability (GLSA 201206-30)
Severity: normal
Exploitable: remote
Date: June 25, 2012
Bug(s): #299120
ID: 201206-30

Synopsis

An error in the hostname matching in sendmail might enable remote
attackers to conduct man-in-the-middle attacks.


Background

sendmail is a widely-used Mail Transport Agent (MTA).

Affected Packages

Package: mail-mta/sendmail
Vulnerable: < 8.14.4
Unaffected: >= 8.14.4
Architectures: All supported architectures


Description

A vulnerability has been discovered in sendmail. Please review the CVE
identifier referenced below for details.


Impact

A remote attacker might employ a specially crafted certificate to
conduct man-in-the-middle attacks on SSL connections made using sendmail.


Workaround

There is no known workaround at this time.

Resolution

All sendmail users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=mail-mta/sendmail-8.14.4"
   


References

CVE-2009-4565
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