Published: 15 August 2019
HTTP/2 (2.4.20 through 2.4.39) very early pushes, for example configured with "H2PushResource", could lead to an overwrite of memory in the pushing request's pool, leading to crashes. The memory copied is that of the configured push link header values, not data supplied by the client.
apache 2.4.20 and newer apache 2.4.18 does not build mod_http2.
Unpatched servers can disable HTTP/2 push with the "H2Push off" directive.
CVSS 3 base score: 7.5