Improper Validation of Integrity Check Value Affecting wireshark package, versions <3.2.3-1ubuntu0.1~esm1


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
2.35% (83rd percentile)

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  • Snyk IDSNYK-UBUNTU2004-WIRESHARK-1135995
  • published19 Aug 2025
  • disclosed6 Oct 2020

Introduced: 6 Oct 2020

CVE-2020-25862  (opens in a new tab)
CWE-354  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 wireshark to version 3.2.3-1ubuntu0.1~esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream wireshark package and not the wireshark package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

In Wireshark 3.2.0 to 3.2.6, 3.0.0 to 3.0.13, and 2.6.0 to 2.6.20, the TCP dissector could crash. This was addressed in epan/dissectors/packet-tcp.c by changing the handling of the invalid 0xFFFF checksum.

CVSS Base Scores

version 3.1