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Bug 798114 (CVE-2021-21419) - <dev-python/eventlet-0.31.0: memory exhaustion from websocket peer (CVE-2021-21419)
Summary: <dev-python/eventlet-0.31.0: memory exhaustion from websocket peer (CVE-2021-...
Alias: CVE-2021-21419
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor (vote)
Assignee: Gentoo Security
Whiteboard: B3 [glsa?]
Depends on: 794325
  Show dependency tree
Reported: 2021-06-23 23:39 UTC by John Helmert III
Modified: 2021-09-07 07:14 UTC (History)
2 users (show)

See Also:
Package list:
Runtime testing required: ---


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Description John Helmert III gentoo-dev Security 2021-06-23 23:39:09 UTC
CVE-2021-21419 (

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.

Fix in 0.31.0, we'll just depend on the stablereq here.
Comment 1 NATTkA bot gentoo-dev 2021-07-29 17:21:26 UTC Comment hidden (obsolete)
Comment 2 NATTkA bot gentoo-dev 2021-07-29 17:29:35 UTC Comment hidden (obsolete)
Comment 3 NATTkA bot gentoo-dev 2021-07-29 17:37:33 UTC Comment hidden (obsolete)
Comment 4 NATTkA bot gentoo-dev 2021-07-29 17:45:38 UTC Comment hidden (obsolete)
Comment 5 NATTkA bot gentoo-dev 2021-07-29 17:53:43 UTC Comment hidden (obsolete)
Comment 6 NATTkA bot gentoo-dev 2021-07-29 18:01:36 UTC Comment hidden (obsolete)
Comment 7 NATTkA bot gentoo-dev 2021-07-29 18:09:58 UTC
Package list is empty or all packages have requested keywords.
Comment 8 Sam James archtester gentoo-dev Security 2021-09-07 00:22:14 UTC
Please cleanup, thanks!
Comment 9 Michał Górny archtester Gentoo Infrastructure gentoo-dev Security 2021-09-07 07:10:28 UTC