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Fixed buffer over-read while logging invalid request headers. Since 667aaf61a778 (1.1.17) the ngx_http_parse_header_line() function can return NGX_HTTP_PARSE_INVALID_HEADER when a header contains NUL character. In this case the r->header_end pointer isn't properly initialized, but the log message in ngx_http_process_request_headers() hasn't been adjusted. It used the pointer in size calculation, which might result in up to 2k buffer over-read. Found with afl-fuzz.
author Valentin Bartenev <vbart@nginx.com>
date Wed, 24 Feb 2016 16:01:23 +0300
parents 670ceaba03d8
children
line wrap: on
line source


# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


CFLAGS =	-c -zq -bt=nt -ot -op -oi -oe -s -bm $(CPU_OPT)
PCREFLAGS =	-DHAVE_CONFIG_H -DPCRE_STATIC -DPOSIX_MALLOC_THRESHOLD=10 &
		-DSUPPORT_PCRE8 -DHAVE_MEMMOVE


pcre.lib:
	cd $(PCRE)

	wcl386 $(CFLAGS) -i=. $(PCREFLAGS) pcre_*.c

	dir /b *.obj > pcre.lst

	wlib -n pcre.lib @pcre.lst

pcre.h:
	cd $(PCRE)

	copy /y pcre.h.generic pcre.h
	copy /y config.h.generic config.h
	copy /y pcre_chartables.c.dist pcre_chartables.c