CVE-2020-11993

Published: 7 August 2020

Apache HTTP Server versions 2.4.20 to 2.4.43 When trace/debug was enabled for the HTTP/2 module and on certain traffic edge patterns, logging statements were made on the wrong connection, causing concurrent use of memory pools. Configuring the LogLevel of mod_http2 above "info" will mitigate this vulnerability for unpatched servers.

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
apache2 Launchpad, Ubuntu, Debian	bionic	Released (2.4.29-1ubuntu4.14)
	focal	Released (2.4.41-4ubuntu3.1)
	trusty	Not vulnerable (code not present)
	upstream	Released (2.4.44)
	xenial	Not vulnerable (code not present)
	Patches: upstream: https://svn.apache.org/r1879642 upstream: https://github.com/apache/httpd/commit/63a0a87efa0925514d15c211b508f6594669888c

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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