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wnpa-sec-2024-06 · T.38 dissector crash

Summary

Name: T.38 dissector crash

Docid: wnpa-sec-2024-06

Date: March 27, 2024

Affected versions: 4.2.0 to 4.2.3, 4.0.0 to 4.0.13

Fixed versions: 4.2.4, 4.0.14

References:

Wireshark issue 19695.
CVE-2024-2955.

Details

Description

The T.38 protocol dissector could crash.

Impact

Discovered in our internal testing environment. We are unaware of any exploits for this issue. It may be possible to make Wireshark crash by injecting a malformed packet onto the wire or by convincing someone to read a malformed packet trace file.

Resolution

Upgrade to Wireshark 4.2.4, 4.0.14 or later.