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Merge pull request #10744 from luizluca/libvpx-fixcve 

[18.06] libvpx: backport security fixes
This commit is contained in:
Rosen Penev 2019-12-10 22:58:11 -08:00 committed by GitHub
parent cce63a697b 98ca3621cf
commit 44b1f65cc4
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2 changed files with 212 additions and 1 deletions
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2
libs/libvpx/Makefile
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@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=libvpx
PKG_VERSION:=1.7.0
PKG_RELEASE:=1
PKG_RELEASE:=2
PKG_REV:=v$(PKG_VERSION)
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_REV).tar.gz

211
libs/libvpx/patches/400-CVE-2019-9232_9325_9371_9433.patch Normal file
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@ -0,0 +1,211 @@
Backports of
From 46e17f0cb4a80b36755c84b8bf15731d3386c08f Mon Sep 17 00:00:00 2001
From: kyslov <kyslov@google.com>
Date: Fri, 4 Jan 2019 17:04:09 -0800
Subject: [PATCH] Fix OOB memory access on fuzzed data
From 0681cff1ad36b3ef8ec242f59b5a6c4234ccfb88 Mon Sep 17 00:00:00 2001
From: James Zern <jzern@google.com>
Date: Tue, 24 Jul 2018 21:36:50 -0700
Subject: [PATCH] vp9: fix OOB read in decoder_peek_si_internal
From f00890eecdf8365ea125ac16769a83aa6b68792d Mon Sep 17 00:00:00 2001
From: James Zern <jzern@google.com>
Date: Tue, 11 Dec 2018 18:06:20 -0800
Subject: [PATCH] update libwebm to libwebm-1.0.0.27-352-g6ab9fcf
From 34d54b04e98dd0bac32e9aab0fbda0bf501bc742 Mon Sep 17 00:00:00 2001
From: James Zern <jzern@google.com>
Date: Tue, 9 Apr 2019 18:37:44 -0700
Subject: [PATCH] update libwebm to libwebm-1.0.0.27-358-gdbf1d10
From 52add5896661d186dec284ed646a4b33b607d2c7 Mon Sep 17 00:00:00 2001
From: Jerome Jiang <jianj@google.com>
Date: Wed, 23 May 2018 15:43:00 -0700
Subject: [PATCH] VP8: Fix use-after-free in postproc.
to address CVE-2019-9232 CVE-2019-9325 CVE-2019-9371 CVE-2019-9433
--- a/test/decode_api_test.cc
+++ b/test/decode_api_test.cc
@@ -138,8 +138,30 @@ TEST(DecodeAPI, Vp9InvalidDecode) {
EXPECT_EQ(VPX_CODEC_OK, vpx_codec_destroy(&dec));
}
-TEST(DecodeAPI, Vp9PeekSI) {
+void TestPeekInfo(const uint8_t *const data, uint32_t data_sz,
+ uint32_t peek_size) {
const vpx_codec_iface_t *const codec = &vpx_codec_vp9_dx_algo;
+ // Verify behavior of vpx_codec_decode. vpx_codec_decode doesn't even get
+ // to decoder_peek_si_internal on frames of size < 8.
+ if (data_sz >= 8) {
+ vpx_codec_ctx_t dec;
+ EXPECT_EQ(VPX_CODEC_OK, vpx_codec_dec_init(&dec, codec, NULL, 0));
+ EXPECT_EQ((data_sz < peek_size) ? VPX_CODEC_UNSUP_BITSTREAM
+ : VPX_CODEC_CORRUPT_FRAME,
+ vpx_codec_decode(&dec, data, data_sz, NULL, 0));
+ vpx_codec_iter_t iter = NULL;
+ EXPECT_EQ(NULL, vpx_codec_get_frame(&dec, &iter));
+ EXPECT_EQ(VPX_CODEC_OK, vpx_codec_destroy(&dec));
+ }
+
+ // Verify behavior of vpx_codec_peek_stream_info.
+ vpx_codec_stream_info_t si;
+ si.sz = sizeof(si);
+ EXPECT_EQ((data_sz < peek_size) ? VPX_CODEC_UNSUP_BITSTREAM : VPX_CODEC_OK,
+ vpx_codec_peek_stream_info(codec, data, data_sz, &si));
+}
+
+TEST(DecodeAPI, Vp9PeekStreamInfo) {
// The first 9 bytes are valid and the rest of the bytes are made up. Until
// size 10, this should return VPX_CODEC_UNSUP_BITSTREAM and after that it
// should return VPX_CODEC_CORRUPT_FRAME.
@@ -150,24 +172,18 @@ TEST(DecodeAPI, Vp9PeekSI) {
};
for (uint32_t data_sz = 1; data_sz <= 32; ++data_sz) {
- // Verify behavior of vpx_codec_decode. vpx_codec_decode doesn't even get
- // to decoder_peek_si_internal on frames of size < 8.
- if (data_sz >= 8) {
- vpx_codec_ctx_t dec;
- EXPECT_EQ(VPX_CODEC_OK, vpx_codec_dec_init(&dec, codec, NULL, 0));
- EXPECT_EQ(
- (data_sz < 10) ? VPX_CODEC_UNSUP_BITSTREAM : VPX_CODEC_CORRUPT_FRAME,
- vpx_codec_decode(&dec, data, data_sz, NULL, 0));
- vpx_codec_iter_t iter = NULL;
- EXPECT_EQ(NULL, vpx_codec_get_frame(&dec, &iter));
- EXPECT_EQ(VPX_CODEC_OK, vpx_codec_destroy(&dec));
- }
-
- // Verify behavior of vpx_codec_peek_stream_info.
- vpx_codec_stream_info_t si;
- si.sz = sizeof(si);
- EXPECT_EQ((data_sz < 10) ? VPX_CODEC_UNSUP_BITSTREAM : VPX_CODEC_OK,
- vpx_codec_peek_stream_info(codec, data, data_sz, &si));
+ TestPeekInfo(data, data_sz, 10);
+ }
+}
+
+TEST(DecodeAPI, Vp9PeekStreamInfoTruncated) {
+ // This profile 1 header requires 10.25 bytes, ensure
+ // vpx_codec_peek_stream_info doesn't over read.
+ const uint8_t profile1_data[10] = { 0xa4, 0xe9, 0x30, 0x68, 0x53,
+ 0xe9, 0x30, 0x68, 0x53, 0x04 };
+
+ for (uint32_t data_sz = 1; data_sz <= 10; ++data_sz) {
+ TestPeekInfo(profile1_data, data_sz, 11);
}
}
#endif // CONFIG_VP9_DECODER
--- a/third_party/libwebm/mkvparser/mkvparser.cc
+++ b/third_party/libwebm/mkvparser/mkvparser.cc
@@ -5307,8 +5307,8 @@ long VideoTrack::Parse(Segment* pSegment
const long long stop = pos + s.size;
- Colour* colour = NULL;
- Projection* projection = NULL;
+ std::unique_ptr<Colour> colour_ptr;
+ std::unique_ptr<Projection> projection_ptr;
while (pos < stop) {
long long id, size;
@@ -5357,11 +5357,19 @@ long VideoTrack::Parse(Segment* pSegment
if (rate <= 0)
return E_FILE_FORMAT_INVALID;
} else if (id == libwebm::kMkvColour) {
- if (!Colour::Parse(pReader, pos, size, &colour))
+ Colour* colour = NULL;
+ if (!Colour::Parse(pReader, pos, size, &colour)) {
return E_FILE_FORMAT_INVALID;
+ } else {
+ colour_ptr.reset(colour);
+ }
} else if (id == libwebm::kMkvProjection) {
- if (!Projection::Parse(pReader, pos, size, &projection))
+ Projection* projection = NULL;
+ if (!Projection::Parse(pReader, pos, size, &projection)) {
return E_FILE_FORMAT_INVALID;
+ } else {
+ projection_ptr.reset(projection);
+ }
}
pos += size; // consume payload
@@ -5392,8 +5400,8 @@ long VideoTrack::Parse(Segment* pSegment
pTrack->m_display_unit = display_unit;
pTrack->m_stereo_mode = stereo_mode;
pTrack->m_rate = rate;
- pTrack->m_colour = colour;
- pTrack->m_projection = projection;
+ pTrack->m_colour = colour_ptr.release();
+ pTrack->m_projection = projection_ptr.release();
pResult = pTrack;
return 0; // success
--- a/vp8/common/postproc.c
+++ b/vp8/common/postproc.c
@@ -65,7 +65,7 @@ void vp8_deblock(VP8_COMMON *cm, YV12_BU
double level = 6.0e-05 * q * q * q - .0067 * q * q + .306 * q + .0065;
int ppl = (int)(level + .5);
- const MODE_INFO *mode_info_context = cm->show_frame_mi;
+ const MODE_INFO *mode_info_context = cm->mi;
int mbr, mbc;
/* The pixel thresholds are adjusted according to if or not the macroblock
--- a/vp8/decoder/dboolhuff.h
+++ b/vp8/decoder/dboolhuff.h
@@ -76,7 +76,7 @@ static int vp8dx_decode_bool(BOOL_DECODE
}
{
- register int shift = vp8_norm[range];
+ const unsigned char shift = vp8_norm[(unsigned char)range];
range <<= shift;
value <<= shift;
count -= shift;
--- a/vp9/vp9_dx_iface.c
+++ b/vp9/vp9_dx_iface.c
@@ -97,7 +97,7 @@ static vpx_codec_err_t decoder_peek_si_i
const uint8_t *data, unsigned int data_sz, vpx_codec_stream_info_t *si,
int *is_intra_only, vpx_decrypt_cb decrypt_cb, void *decrypt_state) {
int intra_only_flag = 0;
- uint8_t clear_buffer[10];
+ uint8_t clear_buffer[11];
if (data + data_sz <= data) return VPX_CODEC_INVALID_PARAM;
@@ -158,6 +158,9 @@ static vpx_codec_err_t decoder_peek_si_i
if (profile > PROFILE_0) {
if (!parse_bitdepth_colorspace_sampling(profile, &rb))
return VPX_CODEC_UNSUP_BITSTREAM;
+ // The colorspace info may cause vp9_read_frame_size() to need 11
+ // bytes.
+ if (data_sz < 11) return VPX_CODEC_UNSUP_BITSTREAM;
}
rb.bit_offset += REF_FRAMES; // refresh_frame_flags
vp9_read_frame_size(&rb, (int *)&si->w, (int *)&si->h);
--- a/vpx_dsp/bitreader.h
+++ b/vpx_dsp/bitreader.h
@@ -94,7 +94,7 @@ static INLINE int vpx_read(vpx_reader *r
}
{
- register int shift = vpx_norm[range];
+ const unsigned char shift = vpx_norm[(unsigned char)range];
range <<= shift;
value <<= shift;
count -= shift;
--- a/vpx_dsp/bitreader_buffer.c
+++ b/vpx_dsp/bitreader_buffer.c
@@ -23,7 +23,7 @@ int vpx_rb_read_bit(struct vpx_read_bit_
rb->bit_offset = off + 1;
return bit;
} else {
- rb->error_handler(rb->error_handler_data);
+ if (rb->error_handler != NULL) rb->error_handler(rb->error_handler_data);
return 0;
}
}