CVE-2021-4186 (GCVE-0-2021-4186)
Vulnerability from cvelistv5
Published
2021-12-30 00:00
Modified
2025-11-03 21:45
Severity ?
6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CWE
  • Null pointer dereference in Wireshark
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
References
cve@gitlab.com https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4186.json Third Party Advisory
cve@gitlab.com https://gitlab.com/wireshark/wireshark/-/issues/17737 Exploit, Issue Tracking, Third Party Advisory
cve@gitlab.com https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2EY2VFBU3YGGWI5BW4XKT3F37MYGEQUD/
cve@gitlab.com https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3FH2J57GDA2WMBS6J56F6QQRA6BXQQFZ/
cve@gitlab.com https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q6XGBKWSQFCVYUN4ZK3O3NJIFP3OAFVT/
cve@gitlab.com https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5AEK3XTOIOGCGUILUFISMGX54YJXWGJ/
cve@gitlab.com https://security.gentoo.org/glsa/202210-04 Third Party Advisory
cve@gitlab.com https://www.wireshark.org/security/wnpa-sec-2021-16.html Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4186.json Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://gitlab.com/wireshark/wireshark/-/issues/17737 Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2024/09/msg00049.html
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2EY2VFBU3YGGWI5BW4XKT3F37MYGEQUD/
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3FH2J57GDA2WMBS6J56F6QQRA6BXQQFZ/
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q6XGBKWSQFCVYUN4ZK3O3NJIFP3OAFVT/
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5AEK3XTOIOGCGUILUFISMGX54YJXWGJ/
af854a3a-2127-422b-91ae-364da2661108 https://security.gentoo.org/glsa/202210-04 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.wireshark.org/security/wnpa-sec-2021-16.html Vendor Advisory
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Version: >=3.4.0, <3.4.10
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  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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