CVE-2021-4186

Crash in the Gryphon dissector in Wireshark 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file

Score

CVSS 3.1 7.5 High

Status

Modified - cve@gitlab.com

Published

2021-12-30

Last modified

2025-11-03

Weaknesses

CWE-476

Affected products

• Fedora (Fedoraproject)
• Wireshark (Wireshark)
• Wireshark (Wireshark Foundation)

References

• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4186.json
• https://gitlab.com/wireshark/wireshark/-/issues/17737
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2EY2VFBU3YGGWI5BW4XKT3…
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3FH2J57GDA2WMBS6J56F6Q…
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q6XGBKWSQFCVYUN4ZK3O3N…
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5AEK3XTOIOGCGUILUFISM…
• https://security.gentoo.org/glsa/202210-04
• https://www.wireshark.org/security/wnpa-sec-2021-16.html
• https://lists.debian.org/debian-lts-announce/2024/09/msg00049.html