NULL Pointer Dereference Affecting wireshark package, versions <3.2.7-3.41.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
3.94% (90th percentile)

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  • Snyk IDSNYK-SLES151-WIRESHARK-2697691
  • published14 Apr 2022
  • disclosed5 Nov 2020

Introduced: 5 Nov 2020

CVE-2020-25866  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade SLES:15.1 wireshark to version 3.2.7-3.41.1 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 SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

In Wireshark 3.2.0 to 3.2.6 and 3.0.0 to 3.0.13, the BLIP protocol dissector has a NULL pointer dereference because a buffer was sized for compressed (not uncompressed) messages. This was addressed in epan/dissectors/packet-blip.c by allowing reasonable compression ratios and rejecting ZIP bombs.

CVSS Base Scores

version 3.1