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Bug 918416

Summary: www-servers/varnish: http/2 rapid reset vulnerability
Product: Gentoo Security Reporter: John Helmert III <ajak>
Component: VulnerabilitiesAssignee: Gentoo Security <security>
Status: CONFIRMED ---    
Severity: minor CC: maintainer-needed
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
URL: https://github.com/varnishcache/varnish-cache/issues/3996
Whiteboard: B3 [ebuild]
Package list:
Runtime testing required: ---

Description John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2023-11-24 18:52:14 UTC
Alias:
CVE-2023-44487:

The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

According to https://varnish-cache.org/security/VSV00013.html#vsv00013,
fixed in 6.0.12, 7.3.1, and 7.4.2.