Vulnerability in Sendmail

CVE-2009-4565

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.

Vulnerability class: POODLE (CVE-2014-3566)

EPSS: 0.024 (82.1th percentile) — read the EPSS interpretation.

Affected products

  • Sendmail — versions 2.6, 2.6.1, 3.0
  • N/a — versions n/a

Weakness classification (CWE)

References