Mercurial > hg > nginx-quic
view conf/uwsgi_params @ 9075:b71e69247483 default
Variables: avoid possible buffer overrun with some "$sent_http_*".
The existing logic to evaluate multi header "$sent_http_*" variables,
such as $sent_http_cache_control, as previously introduced in 1.23.0,
doesn't take into account that one or more elements can be cleared,
yet still present in a linked list, pointed to by the next field.
Such elements don't contribute to the resulting variable length, an
attempt to append a separator for them ends up in out of bounds write.
This is not possible with standard modules, though at least one third
party module is known to override multi header values this way, so it
makes sense to harden the logic.
The fix restores a generic boundary check.
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Mon, 01 May 2023 19:16:05 +0400 |
parents | 62869a9b2e7d |
children |
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uwsgi_param QUERY_STRING $query_string; uwsgi_param REQUEST_METHOD $request_method; uwsgi_param CONTENT_TYPE $content_type; uwsgi_param CONTENT_LENGTH $content_length; uwsgi_param REQUEST_URI $request_uri; uwsgi_param PATH_INFO $document_uri; uwsgi_param DOCUMENT_ROOT $document_root; uwsgi_param SERVER_PROTOCOL $server_protocol; uwsgi_param REQUEST_SCHEME $scheme; uwsgi_param HTTPS $https if_not_empty; uwsgi_param REMOTE_ADDR $remote_addr; uwsgi_param REMOTE_PORT $remote_port; uwsgi_param SERVER_PORT $server_port; uwsgi_param SERVER_NAME $server_name;