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CVE-2019-10081

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.

Notes

AuthorNote
sbeattie
apache 2.4.20 and newer
apache 2.4.18 does not build mod_http2.

Mitigation

Unpatched servers can disable HTTP/2 push with the "H2Push off" directive.
Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
apache2
Launchpad, Ubuntu, Debian
bionic
Released (2.4.29-1ubuntu4.10)
disco
Released (2.4.38-2ubuntu2.2)
precise Not vulnerable
(code not present)
trusty Not vulnerable
(code not present)
upstream
Released (2.4.41-1)
xenial Not vulnerable
(code not built)