VDB
CVE-2021-21419
CVE-2021-21419
PUBLISHED
Eventlet is a concurrent networking library for Python. A websocket peer may exhaust memory on Eventlet side by sending very large websocket frames. Malicious peer may exhaust memory on Eventlet side by sending highly compressed data frame. A patch in version 0.31.0 restricts websocket frame to reasonable limits. As a workaround, restricting memory usage via OS limits would help against overall machine exhaustion, but there is no workaround to protect Eventlet process.
EPSS 0.13% · 32.1th percentile
Risk Scores
EPSS Score
0.13%
32.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | python-eventlet | 0.25.1-2build1, 0.25.1-2ubuntu1, 0 |
Timeline
- May 7, 2021 CVE Published
- May 8, 2021 EPSS Score
- May 12, 2021 EPSS Score
- May 25, 2021 EPSS Score
- Jul 11, 2021 EPSS Score
- Sep 11, 2021 EPSS Score
- Nov 11, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 15, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 16, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-21419 third-party-advisory
- https://ubuntu.com/security/notices/USN-4956-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-21419 third-party-advisory