Link Following Affecting postfix package, versions <2.6.5-3


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.04% (5th percentile)

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  • Snyk IDSNYK-DEBIAN9-POSTFIX-306654
  • published21 Sept 2009
  • disclosed21 Sept 2009

Introduced: 21 Sep 2009

CVE-2009-2939  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade Debian:9 postfix to version 2.6.5-3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream postfix package and not the postfix package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the postfix user write access to /var/spool/postfix/pid, which might allow local users to conduct symlink attacks that overwrite arbitrary files.

CVSS Scores

version 3.1