NULL Pointer Dereference Affecting wireshark package, versions [0,3.4.10)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.52% (78th percentile)

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  • Snyk IDSNYK-UNMANAGED-WIRESHARK-2327411
  • published29 Dec 2021
  • disclosed19 Nov 2021
  • creditUnknown

Introduced: 19 Nov 2021

CVE-2021-39921  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade wireshark to version 3.4.10 or higher.

Overview

Affected versions of this package are vulnerable to NULL Pointer Dereference. NULL pointer exception in the Modbus dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file

CVSS Scores

version 3.1