CVE-2020-9490

Published: 07 August 2020

Apache HTTP Server versions 2.4.20 to 2.4.43. A specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a crash when the server actually tries to HTTP/2 PUSH a resource afterwards. Configuring the HTTP/2 feature via "H2Push off" will mitigate this vulnerability for unpatched servers.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
apache2
Launchpad, Ubuntu, Debian
Upstream
Released (2.4.44)
Ubuntu 20.10 (Groovy Gorilla)
Released (2.4.46-1ubuntu1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (2.4.41-4ubuntu3.1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (2.4.29-1ubuntu4.14)
Ubuntu 16.04 LTS (Xenial Xerus) Not vulnerable
(code not present)
Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable
(code not present)
Patches:
Upstream: https://svn.apache.org/r1880396
Upstream: https://github.com/apache/httpd/commit/a61223e9cb906110f35ec144b93fee9eb80ad6e4