CVE-2021-20237
Summary
| CVE | CVE-2021-20237 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-05-28 11:15:00 UTC |
| Updated | 2022-08-05 15:20:00 UTC |
| Description | An uncontrolled resource consumption (memory leak) flaw was found in ZeroMQ's src/xpub.cpp in versions before 4.3.3. This flaw allows a remote unauthenticated attacker to send crafted PUB messages that consume excessive memory if the CURVE/ZAP authentication is disabled on the server, causing a denial of service. The highest threat from this vulnerability is to system availability. |
Risk And Classification
Problem Types: CWE-401
NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Memory leak in PUB server induced by malicious client(s) without CURVE/ZAP · Advisory · zeromq/libzmq · GitHub | MISC | github.com | |
| 1921989 – (CVE-2021-20237) CVE-2021-20237 zeromq: Memory leaks via metadata messages processed by PUB sockets | MISC | bugzilla.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 179402 Debian Security Update for zeromq3 (CVE-2021-20237)