VDB
CVE-2021-20236
CVE-2021-20236
PUBLISHED
CVSS 9.800000190734863 CRITICAL
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.
EPSS 1.60% · 75.0th percentile
Risk Scores
CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
1.60%
75.0th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:16.04:LTS | zeromq3 | 0, 4.0.5+dfsg-3ubuntu2, 4.1.4-7 |
| Ubuntu:Pro:14.04:LTS | zeromq3 | 0, 3.2.3+dfsg-2, 3.2.4+dfsg-1 |
| Ubuntu:Pro:18.04:LTS | zeromq3 | 0, 4.2.1-4ubuntu1, 4.2.3-1 |
| Ubuntu:Pro:20.04:LTS | zeromq3 | 0, 4.3.2-1, 4.3.2-2ubuntu1 |
Timeline
- May 28, 2021 CVE Published
- May 29, 2021 EPSS Score
- Aug 1, 2021 EPSS Score
- Oct 1, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 1, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Jun 5, 2022 EPSS Score
- Aug 6, 2022 EPSS Score
- Oct 7, 2022 EPSS Score
- Dec 8, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-20236 third-party-advisory
- https://github.com/zeromq/libzmq/security/advisories/GHSA-qq65-x72m-9wr8 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-20236 third-party-advisory