CVE-2020-26575

NameCVE-2020-26575
DescriptionIn Wireshark through 3.2.7, the Facebook Zero Protocol (aka FBZERO) dissector could enter an infinite loop. This was addressed in epan/dissectors/packet-fbzero.c by correcting the implementation of offset advancement.
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)
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
wireshark (PTS)stretch (security), stretch2.6.7-1~deb9u1vulnerable
buster2.6.8-1.1vulnerable
bullseye, sid3.2.7-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
wiresharksource(unstable)(unfixed)

Notes

[buster] - wireshark <postponed> (Minor issue, can be fixed along in next DSA)
https://gitlab.com/wireshark/wireshark/-/commit/3ff940652962c099b73ae3233322b8697b0d10ab
https://gitlab.com/wireshark/wireshark/-/issues/16887
https://gitlab.com/wireshark/wireshark/-/merge_requests/467
https://gitlab.com/wireshark/wireshark/-/merge_requests/471
https://gitlab.com/wireshark/wireshark/-/merge_requests/472
https://gitlab.com/wireshark/wireshark/-/merge_requests/473

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