Mercurial > hg > nginx
annotate src/stream/ngx_stream_ssl_module.h @ 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> |
---|---|
date | Tue, 11 Jul 2017 16:06:23 +0300 |
parents | 41cb1b64561d |
children | 7f955d3b9a0d |
rev | line source |
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6115 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 * Copyright (C) Nginx, Inc. | |
5 */ | |
6 | |
7 | |
8 #ifndef _NGX_STREAM_SSL_H_INCLUDED_ | |
9 #define _NGX_STREAM_SSL_H_INCLUDED_ | |
10 | |
11 | |
12 #include <ngx_config.h> | |
13 #include <ngx_core.h> | |
14 #include <ngx_stream.h> | |
15 | |
16 | |
17 typedef struct { | |
18 ngx_msec_t handshake_timeout; | |
19 | |
20 ngx_flag_t prefer_server_ciphers; | |
21 | |
22 ngx_ssl_t ssl; | |
23 | |
24 ngx_uint_t protocols; | |
25 | |
6850
41cb1b64561d
Stream: client SSL certificates verification support.
Vladimir Homutov <vl@nginx.com>
parents:
6550
diff
changeset
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26 ngx_uint_t verify; |
41cb1b64561d
Stream: client SSL certificates verification support.
Vladimir Homutov <vl@nginx.com>
parents:
6550
diff
changeset
|
27 ngx_uint_t verify_depth; |
41cb1b64561d
Stream: client SSL certificates verification support.
Vladimir Homutov <vl@nginx.com>
parents:
6550
diff
changeset
|
28 |
6115 | 29 ssize_t builtin_session_cache; |
30 | |
31 time_t session_timeout; | |
32 | |
6550
51e1f047d15d
SSL: support for multiple certificates (ticket #814).
Maxim Dounin <mdounin@mdounin.ru>
parents:
6115
diff
changeset
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33 ngx_array_t *certificates; |
51e1f047d15d
SSL: support for multiple certificates (ticket #814).
Maxim Dounin <mdounin@mdounin.ru>
parents:
6115
diff
changeset
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34 ngx_array_t *certificate_keys; |
51e1f047d15d
SSL: support for multiple certificates (ticket #814).
Maxim Dounin <mdounin@mdounin.ru>
parents:
6115
diff
changeset
|
35 |
6115 | 36 ngx_str_t dhparam; |
37 ngx_str_t ecdh_curve; | |
6850
41cb1b64561d
Stream: client SSL certificates verification support.
Vladimir Homutov <vl@nginx.com>
parents:
6550
diff
changeset
|
38 ngx_str_t client_certificate; |
41cb1b64561d
Stream: client SSL certificates verification support.
Vladimir Homutov <vl@nginx.com>
parents:
6550
diff
changeset
|
39 ngx_str_t trusted_certificate; |
41cb1b64561d
Stream: client SSL certificates verification support.
Vladimir Homutov <vl@nginx.com>
parents:
6550
diff
changeset
|
40 ngx_str_t crl; |
6115 | 41 |
42 ngx_str_t ciphers; | |
43 | |
44 ngx_array_t *passwords; | |
45 | |
46 ngx_shm_zone_t *shm_zone; | |
47 | |
48 ngx_flag_t session_tickets; | |
49 ngx_array_t *session_ticket_keys; | |
50 } ngx_stream_ssl_conf_t; | |
51 | |
52 | |
53 extern ngx_module_t ngx_stream_ssl_module; | |
54 | |
55 | |
56 #endif /* _NGX_STREAM_SSL_H_INCLUDED_ */ |