CVE-2021-20236
Fixed in a distro release EPSS 2%
A flaw was found in the ZeroMQ server in versions before 4.3.3. 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.
Products: zeromq, redhat ceph_storage, redhat enterprise_linux, fedoraproject fedora
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | zeromq3 | 4.3.3-1 |
| Debian 13 | zeromq3 | 4.3.3-1 |
| Debian 14 | zeromq3 | 4.3.3-1 |
| Ubuntu Pro 14.04 LTS | zeromq3 | no fix |
| Ubuntu Pro 16.04 LTS | zeromq3 | no fix |
| Ubuntu Pro 18.04 LTS | zeromq3 | no fix |
| Ubuntu Pro 20.04 LTS | zeromq3 | no fix |