Improper Input Validation Affecting vdukhovni/postfix package, versions [,2.4.9)[2.5.0,2.5.5)[2.0,2.6-2008090)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.7% (50th percentile)

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  • Snyk IDSNYK-UNMANAGED-VDUKHOVNIPOSTFIX-2364714
  • published26 Jan 2022
  • disclosed12 Sept 2008
  • creditUnknown

Introduced: 12 Sep 2008

CVE-2008-3889  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade vdukhovni/postfix to version 2.4.9, 2.5.5, 2.6-2008090 or higher.

Overview

Affected versions of this package are vulnerable to Improper Input Validation. Postfix 2.4 before 2.4.9, 2.5 before 2.5.5, and 2.6 before 2.6-20080902, when used with the Linux 2.6 kernel, leaks epoll file descriptors during execution of "non-Postfix" commands, which allows local users to cause a denial of service (application slowdown or exit) via a crafted command, as demonstrated by a command in a .forward file.

CVSS Base Scores

version 3.1