CVE-2021-4186

NameCVE-2021-4186
DescriptionCrash in the Gryphon dissector in Wireshark 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
wireshark (PTS)buster2.6.20-0+deb10u3fixed
buster (security)2.6.20-0+deb10u2fixed
bullseye (security), bullseye3.4.10-0+deb11u1vulnerable
bookworm, sid3.6.6-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
wiresharksourcestretch(not affected)
wiresharksourcebuster(not affected)
wiresharksource(unstable)3.6.0-1

Notes

[bullseye] - wireshark <no-dsa> (Minor issue)
[buster] - wireshark <not-affected> (The vulnerable code is not present)
[stretch] - wireshark <not-affected> (The vulnerable code is not present)
https://www.wireshark.org/security/wnpa-sec-2021-16.html
https://gitlab.com/wireshark/wireshark/-/issues/17737

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