CVE-2023-0668

wireshark: IEEE C37.118 Synchrophasor dissector crash

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Severity

Moderate

Red Hat Product Security

6.5

CVSS 3.1

Review impact separately from score.

Published · May 18, 2023

Updated · November 21, 2025

Description

A flaw was found in the IEEE C37.118 Synchrophasor dissector of Wireshark. This issue occurs when decoding malformed packets from a pcap file or from the network, causing a buffer overflow, resulting in a denial of service.

Statement

Wireshark as shipped in Red Hat Enterprise Linux 8 is not affected by this vulnerability because the vulnerable code in the IEEE C37.118 Synchrophasor dissector was introduced in a newer Wireshark version.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE-125 · Out-of-bounds Read