CVE-2021-41524

Published: 5 October 2021

While fuzzing the 2.4.49 httpd, a new null pointer dereference was detected during HTTP/2 request processing, allowing an external source to DoS the server. This requires a specially crafted request. The vulnerability was recently introduced in version 2.4.49. No exploit is known to the project.

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
apache2 Launchpad, Ubuntu, Debian	bionic	Not vulnerable
	focal	Not vulnerable
	hirsute	Not vulnerable
	impish	Not vulnerable
	jammy	Not vulnerable
	trusty	Not vulnerable
	upstream	Released (2.4.50-1)
	xenial	Not vulnerable

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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