PT-2021-23417 · Wireshark+4 · Wireshark+4

Published 2021-12-30 · Updated 2025-06-04 · CVE-2021-4182

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Wireshark versions 3.4.0 through 3.4.10 Wireshark version 3.6.0

Description The issue is related to a crash in the RFC 7468 dissector, allowing denial of service via packet injection or crafted capture file.

Recommendations For Wireshark versions 3.4.0 through 3.4.10, consider disabling the RFC 7468 dissector as a temporary workaround until a patch is available. For Wireshark version 3.6.0, consider disabling the RFC 7468 dissector as a temporary workaround until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

ALT-PU-2022-1005

ALT-PU-2022-1096

ALT-PU-2022-1368

ALT-PU-2022-1599

AZL-7418

CVE-2021-4182

DLA-3906-1

MGASA-2022-0004

OPENSUSE-SU-2022:0375-1

OPENSUSE-SU-2022_0375-1

OPENSUSE-SU-2024:11703-1

SUSE-SU-2022:0375-1

USN-7552-1

Affected Products

Alt Linux

Linuxmint

Suse

Ubuntu

Wireshark

References · 59

• 🔥 https://gitlab.com/wireshark/wireshark/-/issues/17801 · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-4182 · Vendor Advisory
• https://oracle.com/security-alerts/cpuapr2022.html · Patch
• https://ubuntu.com/security/CVE-2021-4186 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-0582 · Vendor Advisory
• https://osv.dev/vulnerability/USN-7552-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-3190 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7552-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:0375-1 · Vendor Advisory
• https://security.gentoo.org/glsa/202210-04 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-0585 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-4182 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-4182 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-4182 · Vendor Advisory
• https://wireshark.org/security/wnpa-sec-2021-20.html · Vendor Advisory