Loop with Unreachable Exit Condition ('Infinite Loop') Affecting wireshark package, versions <2.6.20-0+deb9u1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.49% (77th percentile)

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  • Snyk IDSNYK-DEBIAN9-WIRESHARK-1016140
  • published7 Oct 2020
  • disclosed6 Oct 2020

Introduced: 6 Oct 2020

CVE-2020-26575  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Debian:9 wireshark to version 2.6.20-0+deb9u1 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:9 relevant fixed versions and status.

In Wireshark through 3.2.7, the Facebook Zero Protocol (aka FBZERO) dissector could enter an infinite loop. This was addressed in epan/dissectors/packet-fbzero.c by correcting the implementation of offset advancement.

CVSS Scores

version 3.1