Mercurial > hg > nginx
view src/mail/ngx_mail_ssl_module.h @ 7145:83600ce25995 stable-1.12
Fixed buffer overread with unix sockets after accept().
Some OSes (notably macOS, NetBSD, and Solaris) allow unix socket addresses
larger than struct sockaddr_un. Moreover, some of them (macOS, Solaris)
return socklen of the socket address before it was truncated to fit the
buffer provided. As such, on these systems socklen must not be used without
additional check that it is within the buffer provided.
Appropriate checks added to ngx_event_accept() (after accept()),
ngx_event_recvmsg() (after recvmsg()), and ngx_set_inherited_sockets()
(after getsockname()).
We also obtain socket addresses via getsockname() in
ngx_connection_local_sockaddr(), but it does not need any checks as
it is only used for INET and INET6 sockets (as there can be no
wildcard unix sockets).
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Wed, 04 Oct 2017 21:19:33 +0300 |
parents | 51e1f047d15d |
children | 7f955d3b9a0d |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_MAIL_SSL_H_INCLUDED_ #define _NGX_MAIL_SSL_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_mail.h> #define NGX_MAIL_STARTTLS_OFF 0 #define NGX_MAIL_STARTTLS_ON 1 #define NGX_MAIL_STARTTLS_ONLY 2 typedef struct { ngx_flag_t enable; ngx_flag_t prefer_server_ciphers; ngx_ssl_t ssl; ngx_uint_t starttls; ngx_uint_t protocols; ngx_uint_t verify; ngx_uint_t verify_depth; ssize_t builtin_session_cache; time_t session_timeout; ngx_array_t *certificates; ngx_array_t *certificate_keys; ngx_str_t dhparam; ngx_str_t ecdh_curve; ngx_str_t client_certificate; ngx_str_t trusted_certificate; ngx_str_t crl; ngx_str_t ciphers; ngx_array_t *passwords; ngx_shm_zone_t *shm_zone; ngx_flag_t session_tickets; ngx_array_t *session_ticket_keys; u_char *file; ngx_uint_t line; } ngx_mail_ssl_conf_t; extern ngx_module_t ngx_mail_ssl_module; #endif /* _NGX_MAIL_SSL_H_INCLUDED_ */