CVE-2021-20236: Out-of-bounds Write

May 28, 2021 (updated November 7, 2023)

A flaw was found in the ZeroMQ server This flaw allows a malicious client to cause a stack buffer overflow on the server by sending crafted topic subscription requests and then unsubscribing. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

References

bugzilla.redhat.com/show_bug.cgi?id=1921976
nvd.nist.gov/vuln/detail/CVE-2021-20236

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