Mercurial > hg > nginx-quic
annotate conf/uwsgi_params @ 7054:e02555553d0b
Range filter: protect from total size overflows.
The overflow can be used to circumvent the restriction on total size of
ranges introduced in c2a91088b0c0 (1.1.2). Additionally, overflow
allows producing ranges with negative start (such ranges can be created
by using a suffix, "bytes=-100"; normally this results in 200 due to
the total size check). These can result in the following errors in logs:
[crit] ... pread() ... failed (22: Invalid argument)
[alert] ... sendfile() failed (22: Invalid argument)
When using cache, it can be also used to reveal cache file header.
It is believed that there are no other negative effects, at least with
standard nginx modules.
In theory, this can also result in memory disclosure and/or segmentation
faults if multiple ranges are allowed, and the response is returned in a
single in-memory buffer. This never happens with standard nginx modules
though, as well as known 3rd party modules.
Fix is to properly protect from possible overflow when incrementing size.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 11 Jul 2017 16:06:23 +0300 |
parents | 62869a9b2e7d |
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rev | line source |
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import original ngx_http_uwsgi_module version
Igor Sysoev <igor@sysoev.ru>
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1 |
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import original ngx_http_uwsgi_module version
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2 uwsgi_param QUERY_STRING $query_string; |
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3 uwsgi_param REQUEST_METHOD $request_method; |
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4 uwsgi_param CONTENT_TYPE $content_type; |
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5 uwsgi_param CONTENT_LENGTH $content_length; |
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6 |
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7 uwsgi_param REQUEST_URI $request_uri; |
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9bf51b3fc1c1
style fix: remove tabs and trailing spaces
Igor Sysoev <igor@sysoev.ru>
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8 uwsgi_param PATH_INFO $document_uri; |
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9 uwsgi_param DOCUMENT_ROOT $document_root; |
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import original ngx_http_uwsgi_module version
Igor Sysoev <igor@sysoev.ru>
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10 uwsgi_param SERVER_PROTOCOL $server_protocol; |
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Added the REQUEST_SCHEME parameter.
Maxim Dounin <mdounin@mdounin.ru>
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11 uwsgi_param REQUEST_SCHEME $scheme; |
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352a7b025f2e
Added HTTPS param with Apache-like behaviour to fastcgi/scgi/uwsgi_params (fixes #38).
Valentin Bartenev <vbart@nginx.com>
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12 uwsgi_param HTTPS $https if_not_empty; |
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13 |
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14 uwsgi_param REMOTE_ADDR $remote_addr; |
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15 uwsgi_param REMOTE_PORT $remote_port; |
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16 uwsgi_param SERVER_PORT $server_port; |
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17 uwsgi_param SERVER_NAME $server_name; |