CVE-2021-20234

NameCVE-2021-20234
DescriptionMemory leak in client induced by malicious server without CURVE/ZAP
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
zeromq3 (PTS)stretch4.2.1-4+deb9u2vulnerable
stretch (security)4.2.1-4+deb9u3vulnerable
buster, buster (security)4.3.1-4+deb10u2vulnerable
bullseye, sid4.3.4-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
zeromq3source(unstable)4.3.3-1

Notes

https://github.com/zeromq/libzmq/pull/3918
https://github.com/zeromq/libzmq/security/advisories/GHSA-wfr2-29gj-5w87
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22037
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22123

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