Improper Input Validation Affecting dovecot package, versions <1:2.0.18-1


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.41% (74th percentile)

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  • Snyk IDSNYK-DEBIAN12-DOVECOT-1544855
  • published7 Mar 2013
  • disclosed7 Mar 2013

Introduced: 7 Mar 2013

CVE-2011-4318  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Debian:12 dovecot to version 1:2.0.18-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dovecot package and not the dovecot package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

Dovecot 2.0.x before 2.0.16, when ssl or starttls is enabled and hostname is used to define the proxy destination, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via a valid certificate for a different hostname.

CVSS Scores

version 3.1