From b24651c3bb6fef59c0e92c24e69151d1a92c4b08 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=D0=A1=D0=B5=D1=80=D0=B3=D0=B5=D0=B9=20=D0=9F=D1=80=D0=BE?= =?UTF-8?q?=D1=85=D0=BE=D1=80=D0=BE=D0=B2?= Date: Mon, 19 Jan 2015 05:06:53 +0300 Subject: Add zlib limited output buffer size functionality This functionality may be useful for compressed streams with high compression ratio (in case of gzip it may be up to x1000), when small amount of compressed data will produce large amount of uncompressed output. This may lead to DoS attacks, because server easily goes out of memory. Example of such high compression ratio stream: ``` dd if=/dev/zero of=sparse.bin bs=1MB count=100 # 100mb of zeroes gzip sparse.bin # 95kb sparse.bin.gz $ erl > {ok, Compressed} = file:read_file("sparse.bin.gz"), > 97082 = size(Compressed), > Uncompressed = zlib:gunzip(Compressed), > 100000000 = iolist_size(Uncompressed). ``` --- erts/preloaded/ebin/zlib.beam | Bin 13188 -> 14156 bytes 1 file changed, 0 insertions(+), 0 deletions(-) (limited to 'erts/preloaded/ebin/zlib.beam') diff --git a/erts/preloaded/ebin/zlib.beam b/erts/preloaded/ebin/zlib.beam index 7006764d96..ed6ab5b254 100644 Binary files a/erts/preloaded/ebin/zlib.beam and b/erts/preloaded/ebin/zlib.beam differ -- cgit v1.2.3 From e0c0518a14b747cf02a0e5adfbd5b116a189422d Mon Sep 17 00:00:00 2001 From: Zandra Hird Date: Tue, 17 Mar 2015 09:10:56 +0100 Subject: update preloaded --- erts/preloaded/ebin/zlib.beam | Bin 14160 -> 14160 bytes 1 file changed, 0 insertions(+), 0 deletions(-) (limited to 'erts/preloaded/ebin/zlib.beam') diff --git a/erts/preloaded/ebin/zlib.beam b/erts/preloaded/ebin/zlib.beam index 8783f189a4..9eaf8b9e59 100644 Binary files a/erts/preloaded/ebin/zlib.beam and b/erts/preloaded/ebin/zlib.beam differ -- cgit v1.2.3 From d43474b527573aed9003f65e201375de2ce0a0d5 Mon Sep 17 00:00:00 2001 From: Henrik Nord Date: Thu, 26 Mar 2015 15:07:05 +0100 Subject: Update preloaded modules --- erts/preloaded/ebin/zlib.beam | Bin 14160 -> 14176 bytes 1 file changed, 0 insertions(+), 0 deletions(-) (limited to 'erts/preloaded/ebin/zlib.beam') diff --git a/erts/preloaded/ebin/zlib.beam b/erts/preloaded/ebin/zlib.beam index 9eaf8b9e59..3224546179 100644 Binary files a/erts/preloaded/ebin/zlib.beam and b/erts/preloaded/ebin/zlib.beam differ -- cgit v1.2.3 From 1419d6d5cd7bcca836d352e73c662b1e336d130e Mon Sep 17 00:00:00 2001 From: Rickard Green Date: Tue, 12 May 2015 17:38:53 +0200 Subject: Update preloaded modules --- erts/preloaded/ebin/zlib.beam | Bin 14176 -> 14176 bytes 1 file changed, 0 insertions(+), 0 deletions(-) (limited to 'erts/preloaded/ebin/zlib.beam') diff --git a/erts/preloaded/ebin/zlib.beam b/erts/preloaded/ebin/zlib.beam index 3224546179..281f668f8c 100644 Binary files a/erts/preloaded/ebin/zlib.beam and b/erts/preloaded/ebin/zlib.beam differ -- cgit v1.2.3