CVE-2021-28904

NameCVE-2021-28904
DescriptionIn function ext_get_plugin() in libyang <= v1.0.225, it doesn't check whether the value of revision is NULL. If revision is NULL, the operation of strcmp(revision, ext_plugins[u].revision) will lead to a crash.
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
Debian Bugs989060

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libyang (PTS)buster0.16.105-1+deb10u1vulnerable
bullseye1.0.184-2vulnerable
sid1.0.225-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libyangsource(unstable)(unfixed)989060

Notes

[bullseye] - libyang <no-dsa> (Minor issue)
[buster] - libyang <no-dsa> (Minor issue)
https://github.com/CESNET/libyang/issues/1451

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