Mercurial > hg > nginx
view misc/GNUmakefile @ 7629:f47f7d3d1bfa
Mp4: fixed possible chunk offset overflow.
In "co64" atom chunk start offset is a 64-bit unsigned integer. When trimming
the "mdat" atom, chunk offsets are casted to off_t values which are typically
64-bit signed integers. A specially crafted mp4 file with huge chunk offsets
may lead to off_t overflow and result in negative trim boundaries.
The consequences of the overflow are:
- Incorrect Content-Length header value in the response.
- Negative left boundary of the response file buffer holding the trimmed "mdat".
This leads to pread()/sendfile() errors followed by closing the client
connection.
On rare systems where off_t is a 32-bit integer, this scenario is also feasible
with the "stco" atom.
The fix is to add checks which make sure data chunks referenced by each track
are within the mp4 file boundaries. Additionally a few more checks are added to
ensure mp4 file consistency and log errors.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Wed, 26 Feb 2020 15:10:46 +0300 |
parents | 1e9bde25d804 |
children | ac52638cd269 |
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VER = $(shell grep 'define NGINX_VERSION' src/core/nginx.h \ | sed -e 's/^.*"\(.*\)".*/\1/') NGINX = nginx-$(VER) TEMP = tmp CC = cl OBJS = objs.msvc8 OPENSSL = openssl-1.1.1d ZLIB = zlib-1.2.11 PCRE = pcre-8.43 release: export mv $(TEMP)/$(NGINX)/auto/configure $(TEMP)/$(NGINX) # delete incomplete sources rm $(TEMP)/$(NGINX)/src/event/ngx_event_acceptex.c rm $(TEMP)/$(NGINX)/src/event/ngx_event_connectex.c rm $(TEMP)/$(NGINX)/src/event/modules/ngx_iocp_module.* rm -r $(TEMP)/$(NGINX)/src/os/win32 mv $(TEMP)/$(NGINX)/docs/text/LICENSE $(TEMP)/$(NGINX) mv $(TEMP)/$(NGINX)/docs/text/README $(TEMP)/$(NGINX) mv $(TEMP)/$(NGINX)/docs/html $(TEMP)/$(NGINX) mv $(TEMP)/$(NGINX)/docs/man $(TEMP)/$(NGINX) $(MAKE) -f docs/GNUmakefile changes rm -r $(TEMP)/$(NGINX)/docs rm -r $(TEMP)/$(NGINX)/misc tar -c -z -f $(NGINX).tar.gz --directory $(TEMP) $(NGINX) export: rm -rf $(TEMP) hg archive -X '.hg*' $(TEMP)/$(NGINX) RELEASE: hg ci -m nginx-$(VER)-RELEASE hg tag -m "release-$(VER) tag" release-$(VER) $(MAKE) -f misc/GNUmakefile release win32: ./auto/configure \ --with-cc=$(CC) \ --builddir=$(OBJS) \ --with-debug \ --prefix= \ --conf-path=conf/nginx.conf \ --pid-path=logs/nginx.pid \ --http-log-path=logs/access.log \ --error-log-path=logs/error.log \ --sbin-path=nginx.exe \ --http-client-body-temp-path=temp/client_body_temp \ --http-proxy-temp-path=temp/proxy_temp \ --http-fastcgi-temp-path=temp/fastcgi_temp \ --http-scgi-temp-path=temp/scgi_temp \ --http-uwsgi-temp-path=temp/uwsgi_temp \ --with-cc-opt=-DFD_SETSIZE=1024 \ --with-pcre=$(OBJS)/lib/$(PCRE) \ --with-zlib=$(OBJS)/lib/$(ZLIB) \ --with-http_v2_module \ --with-http_realip_module \ --with-http_addition_module \ --with-http_sub_module \ --with-http_dav_module \ --with-http_stub_status_module \ --with-http_flv_module \ --with-http_mp4_module \ --with-http_gunzip_module \ --with-http_gzip_static_module \ --with-http_auth_request_module \ --with-http_random_index_module \ --with-http_secure_link_module \ --with-http_slice_module \ --with-mail \ --with-stream \ --with-openssl=$(OBJS)/lib/$(OPENSSL) \ --with-openssl-opt="no-asm no-tests -D_WIN32_WINNT=0x0501" \ --with-http_ssl_module \ --with-mail_ssl_module \ --with-stream_ssl_module zip: export rm -f $(NGINX).zip mkdir -p $(TEMP)/$(NGINX)/docs.new mkdir -p $(TEMP)/$(NGINX)/logs mkdir -p $(TEMP)/$(NGINX)/temp sed -i '' -e "s/$$/`printf '\r'`/" $(TEMP)/$(NGINX)/conf/* mv $(TEMP)/$(NGINX)/docs/text/LICENSE $(TEMP)/$(NGINX)/docs.new mv $(TEMP)/$(NGINX)/docs/text/README $(TEMP)/$(NGINX)/docs.new mv $(TEMP)/$(NGINX)/docs/html $(TEMP)/$(NGINX) rm -r $(TEMP)/$(NGINX)/docs mv $(TEMP)/$(NGINX)/docs.new $(TEMP)/$(NGINX)/docs cp -p $(OBJS)/nginx.exe $(TEMP)/$(NGINX) $(MAKE) -f docs/GNUmakefile changes mv $(TEMP)/$(NGINX)/CHANGES* $(TEMP)/$(NGINX)/docs/ cp -p $(OBJS)/lib/$(OPENSSL)/LICENSE \ $(TEMP)/$(NGINX)/docs/OpenSSL.LICENSE cp -p $(OBJS)/lib/$(PCRE)/LICENCE \ $(TEMP)/$(NGINX)/docs/PCRE.LICENCE sed -ne '/^ (C) 1995-20/,/^ jloup@gzip\.org/p' \ $(OBJS)/lib/$(ZLIB)/README \ > $(TEMP)/$(NGINX)/docs/zlib.LICENSE touch -r $(OBJS)/lib/$(ZLIB)/README \ $(TEMP)/$(NGINX)/docs/zlib.LICENSE rm -r $(TEMP)/$(NGINX)/auto rm -r $(TEMP)/$(NGINX)/misc rm -r $(TEMP)/$(NGINX)/src cd $(TEMP) && zip -r ../$(NGINX).zip $(NGINX) icons: src/os/win32/nginx.ico # 48x48, 32x32 and 16x16 icons src/os/win32/nginx.ico: src/os/win32/nginx_icon48.xpm \ src/os/win32/nginx_icon32.xpm \ src/os/win32/nginx_icon16.xpm test -d $(TEMP) || mkdir $(TEMP) xpmtoppm --alphaout=$(TEMP)/nginx48.pbm \ src/os/win32/nginx_icon48.xpm > $(TEMP)/nginx48.ppm xpmtoppm --alphaout=$(TEMP)/nginx32.pbm \ src/os/win32/nginx_icon32.xpm > $(TEMP)/nginx32.ppm xpmtoppm --alphaout=$(TEMP)/nginx16.pbm \ src/os/win32/nginx_icon16.xpm > $(TEMP)/nginx16.ppm ppmtowinicon -output src/os/win32/nginx.ico -andpgms \ $(TEMP)/nginx48.ppm $(TEMP)/nginx48.pbm \ $(TEMP)/nginx32.ppm $(TEMP)/nginx32.pbm \ $(TEMP)/nginx16.ppm $(TEMP)/nginx16.pbm