CVE-2021-36217

NameCVE-2021-36217
DescriptionAvahi 0.8 allows a local denial of service (NULL pointer dereference and daemon crash) against avahi-daemon via the D-Bus interface or a "ping .local" command.
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 severitylow
Debian Bugs990900

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
avahi (PTS)stretch0.6.32-2fixed
buster0.7-4+deb10u1fixed
bullseye, sid0.8-5vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
avahisourcestretch(not affected)
avahisourcebuster(not affected)
avahisource(unstable)(unfixed)990900

Notes

[bullseye] - avahi <no-dsa> (Minor issue)
[buster] - avahi <not-affected> (Vulnerable code introduced later)
[stretch] - avahi <not-affected> (Vulnerable code introduced later)
https://bugzilla.suse.com/show_bug.cgi?id=1188083
Fixed by: https://github.com/lathiat/avahi/commit/9d31939e55280a733d930b15ac9e4dda4497680c
Introduced by: https://github.com/lathiat/avahi/commit/8f75a045709a780c8cf92a6a21e9d35b593bdecd (v0.8)

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