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)
ReferencesDLA-2547-1
NVD severitymedium
Debian Bugs974688

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
wireshark (PTS)stretch2.6.7-1~deb9u1vulnerable
stretch (security)2.6.20-0+deb9u1fixed
buster2.6.20-0+deb10u1fixed
bullseye3.4.4-1fixed
bookworm, sid3.4.9-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
wiresharksourcestretch2.6.20-0+deb9u1DLA-2547-1
wiresharksourcebuster2.6.20-0+deb10u1
wiresharksource(unstable)3.2.8-0.1974688

Notes

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
https://www.wireshark.org/security/wnpa-sec-2020-14

Search for package or bug name: Reporting problems