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wnpa-sec-2023-10 · LISP dissector large loop

Summary

Name: LISP dissector large loop

Docid: wnpa-sec-2023-10

Date: April 12, 2023

Affected versions: 4.0.0 to 4.0.4, 3.6.0 to 3.6.12

Fixed versions: 4.0.5, 3.6.13

References:

Wireshark issue 18900.
CVE-2023-1993.

Details

Description

The LISP dissector could go into a large loop.

Impact

It may be possible to make Wireshark consume excessive CPU resources by injecting a malformed packet onto the wire or by convincing someone to read a malformed packet trace file.

Resolution

Upgrade to Wireshark 4.0.5, 3.6.13 or later.