CVE-2024-27316

Published: 27 March 2024

HTTP/2 incoming headers exceeding the limit are temporarily buffered in nghttp2 in order to generate an informative HTTP 413 response. If a client does not stop sending headers, this leads to memory exhaustion.

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
apache2 Launchpad, Ubuntu, Debian	bionic	Released (2.4.29-1ubuntu4.27+esm2) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	focal	Released (2.4.41-4ubuntu3.17)
	jammy	Released (2.4.52-1ubuntu4.9)
	mantic	Released (2.4.57-2ubuntu2.4)
	noble	Released (2.4.58-1ubuntu8.1)
	trusty	Needs triage
	upstream	Released (2.4.59-1)
	xenial	Released (2.4.18-2ubuntu3.17+esm12) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	Patches: upstream: https://github.com/apache/httpd/commit/0d73970ec161300a55b630f71bbf72b5c41f28b9

Severity score breakdown

Parameter	Value
Base score	7.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

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