Loop with Unreachable Exit Condition ('Infinite Loop') Affecting wireshark package, versions <2.4.5-1


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.22% (60th percentile)

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  • Snyk IDSNYK-DEBIAN12-WIRESHARK-1562827
  • published23 Feb 2018
  • disclosed23 Feb 2018

Introduced: 23 Feb 2018

CVE-2018-7421  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Debian:12 wireshark to version 2.4.5-1 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 Debian. See How to fix? for Debian:12 relevant fixed versions and status.

In Wireshark 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4, the DMP dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dmp.c by correctly supporting a bounded number of Security Categories for a DMP Security Classification.

CVSS Scores

version 3.1