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Gentoo Linux: CVE-2009-4565: sendmail: X.509 NULL spoofing vulnerability

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Gentoo Linux: CVE-2009-4565: sendmail: X.509 NULL spoofing vulnerability

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
01/04/2010
Created
07/25/2018
Added
10/30/2017
Modified
10/30/2017

Description

sendmail before 8.14.4 does not properly handle a '\0' character in a Common Name (CN) field of an X.509 certificate, which (1) allows man-in-the-middle attackers to spoof arbitrary SSL-based SMTP servers via a crafted server certificate issued by a legitimate Certification Authority, and (2) allows remote attackers to bypass intended access restrictions via a crafted client certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Solution(s)

  • gentoo-linux-upgrade-mail-mta-sendmail

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