CVE-2018-1302: When an HTTP/2 stream was destroyed after being handled, the Apache HTTP Server prior to version 2.4.30 could have written a NULL pointer potentially to an…

medium5.9CVSS 3.0

AVNACHPRNUINSUCNINAH

When an HTTP/2 stream was destroyed after being handled, the Apache HTTP Server prior to version 2.4.30 could have written a NULL pointer potentially to an already freed memory. The memory pools maintained by the server make this vulnerability hard to trigger in usual configurations, the reporter and the team could not reproduce it outside debug builds, so it is classified as low risk.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
apache	http_server	<= 2.4.29	—
apache_software_foundation	apache_http_server	—	—
canonical	ubuntu_linux	—	—
debian	apache2	< apache2 2.4.33-1 (bookworm)	apache2 2.4.33-1 (bookworm)

CVSS provenance

nvdv3.05.9MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

osv5.9MEDIUM