CVE-2021-4186

Summary

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

Affected Software

Weaknesses

• Null pointer dereference in Wireshark

ADP Enrichment

CVE Program Container

Additional References

• https://www.wireshark.org/security/wnpa-sec-2021-16.html
• https://gitlab.com/wireshark/wireshark/-/issues/17737
• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4186.json
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2EY2VFBU3YGGWI5BW4XKT3F37MYGEQUD/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5AEK3XTOIOGCGUILUFISMGX54YJXWGJ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q6XGBKWSQFCVYUN4ZK3O3NJIFP3OAFVT/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3FH2J57GDA2WMBS6J56F6QQRA6BXQQFZ/
• https://security.gentoo.org/glsa/202210-04
• https://lists.debian.org/debian-lts-announce/2024/09/msg00049.html

References

• https://www.wireshark.org/security/wnpa-sec-2021-16.html
• https://gitlab.com/wireshark/wireshark/-/issues/17737
• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4186.json
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2EY2VFBU3YGGWI5BW4XKT3F37MYGEQUD/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5AEK3XTOIOGCGUILUFISMGX54YJXWGJ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q6XGBKWSQFCVYUN4ZK3O3NJIFP3OAFVT/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3FH2J57GDA2WMBS6J56F6QQRA6BXQQFZ/
• https://security.gentoo.org/glsa/202210-04

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