MGASA-2021-0266 - Updated python-eventlet packages fix security vulnerability

Publication date: 18 Jun 2021
URL: https://advisories.mageia.org/MGASA-2021-0266.html
Type: security
Affected Mageia releases: 7, 8
CVE: CVE-2021-21419

Updated python-eventlet packages fix a security vulnerability:

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 (CVE-2021-21419).

References:
- https://bugs.mageia.org/show_bug.cgi?id=29009
- https://ubuntu.com/security/notices/USN-4956-1
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/2WJFSBPLCNSZNHYQC4QDRDFRTEZRMD2L/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21419

SRPMS:
- 7/core/python-eventlet-0.24.1-1.1.mga7
- 8/core/python-eventlet-0.31.0-1.mga8

Mageia 2021-0266: python-eventlet security update

Updated python-eventlet packages fix a security vulnerability: Eventlet is a concurrent networking library for Python

Summary

Updated python-eventlet packages fix a security vulnerability:
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 (CVE-2021-21419).

References

- https://bugs.mageia.org/show_bug.cgi?id=29009

- https://ubuntu.com/security/notices/USN-4956-1

- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/2WJFSBPLCNSZNHYQC4QDRDFRTEZRMD2L/

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21419

Resolution

MGASA-2021-0266 - Updated python-eventlet packages fix security vulnerability

SRPMS

- 7/core/python-eventlet-0.24.1-1.1.mga7

- 8/core/python-eventlet-0.31.0-1.mga8

Severity
Publication date: 18 Jun 2021
URL: https://advisories.mageia.org/MGASA-2021-0266.html
Type: security
CVE: CVE-2021-21419

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