NULL Pointer Dereference Affecting wireshark package, versions [0,2.4.1)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

EPSS
0.28% (69th percentile)

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  • Snyk IDSNYK-UNMANAGED-WIRESHARK-2318002
  • published14 Dec 2021
  • disclosed30 Aug 2017
  • creditUnknown

Introduced: 30 Aug 2017

CVE-2017-13764  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade wireshark to version 2.4.1 or higher.

Overview

Affected versions of this package are vulnerable to NULL Pointer Dereference. In Wireshark 2.4.0, the Modbus dissector could crash with a NULL pointer dereference. This was addressed in epan/dissectors/packet-mbtcp.c by adding length validation.

References

CVSS Scores

version 3.1