Headline
CVE-2022-47664: heap-buffer-overflow (libde265/build/libde265/libde265.so+0x2b6bbb) in ff_hevc_put_hevc_qpel_pixels_8_sse(short*, long, unsigned char const*, long, int, int, short*) · Issue #368 · strukturag/libde265
Libde265 1.0.9 is vulnerable to Buffer Overflow in ff_hevc_put_hevc_qpel_pixels_8_sse
Description
heap-buffer-overflow (libde265/build/libde265/libde265.so+0x2b6bbb) in ff_hevc_put_hevc_qpel_pixels_8_sse(short*, long, unsigned char const*, long, int, int, short*)
Version info
dec265 v1.0.9
--------------
usage: dec265 [options] videofile.bin
The video file must be a raw bitstream, or a stream with NAL units (option -n).
options:
-q, --quiet do not show decoded image
-t, --threads N set number of worker threads (0 - no threading)
-c, --check-hash perform hash check
-n, --nal input is a stream with 4-byte length prefixed NAL units
-f, --frames N set number of frames to process
-o, --output write YUV reconstruction
-d, --dump dump headers
-0, --noaccel do not use any accelerated code (SSE)
-v, --verbose increase verbosity level (up to 3 times)
-L, --no-logging disable logging
-B, --write-bytestream FILENAME write raw bytestream (from NAL input)
-m, --measure YUV compute PSNRs relative to reference YUV
-T, --highest-TID select highest temporal sublayer to decode
--disable-deblocking disable deblocking filter
--disable-sao disable sample-adaptive offset filter
-h, --help show help
Reproduce
git clone https://github.com/strukturag/libde265.git
cd libde265
mkdir build
cd build
cmake ../ -DCMAKE_CXX_FLAGS="-fsanitize=address"
make -j$(nproc)
./dec265/dec265 653.bin
ASAN
WARNING: end_of_sub_stream_one_bit not set to 1 when it should be
WARNING: non-existing PPS referenced
WARNING: maximum number of reference pictures exceeded
WARNING: faulty reference picture list
WARNING: maximum number of reference pictures exceeded
WARNING: faulty reference picture list
WARNING: maximum number of reference pictures exceeded
WARNING: faulty reference picture list
WARNING: maximum number of reference pictures exceeded
WARNING: faulty reference picture list
WARNING: CTB outside of image area (concealing stream error...)
WARNING: maximum number of reference pictures exceeded
WARNING: faulty reference picture list
WARNING: non-existing PPS referenced
WARNING: CTB outside of image area (concealing stream error...)
WARNING: non-existing PPS referenced
WARNING: non-existing PPS referenced
WARNING: CTB outside of image area (concealing stream error...)
WARNING: maximum number of reference pictures exceeded
=================================================================
==733371==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61b00000d190 at pc 0x7f929c8bfbbc bp 0x7ffcdcf97080 sp 0x7ffcdcf97070
READ of size 16 at 0x61b00000d190 thread T0
#0 0x7f929c8bfbbb in ff_hevc_put_hevc_qpel_pixels_8_sse(short*, long, unsigned char const*, long, int, int, short*) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x2b6bbb)
#1 0x7f929c7b249f in acceleration_functions::put_hevc_qpel(short*, long, void const*, long, int, int, short*, int, int, int) const (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x1a949f)
#2 0x7f929c7b35a7 in void mc_luma<unsigned char>(base_context const*, seq_parameter_set const*, int, int, int, int, short*, int, unsigned char const*, int, int, int, int) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x1aa5a7)
#3 0x7f929c7a4a8b in generate_inter_prediction_samples(base_context*, slice_segment_header const*, de265_image*, int, int, int, int, int, int, int, PBMotion const*) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x19ba8b)
#4 0x7f929c7b1a2e in decode_prediction_unit(base_context*, slice_segment_header const*, de265_image*, PBMotionCoding const&, int, int, int, int, int, int, int, int) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x1a8a2e)
#5 0x7f929c7ef80b in read_coding_unit(thread_context*, int, int, int, int) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x1e680b)
#6 0x7f929c7f1762 in read_coding_quadtree(thread_context*, int, int, int, int) [clone .localalias] (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x1e8762)
#7 0x7f929c7f1675 in read_coding_quadtree(thread_context*, int, int, int, int) [clone .localalias] (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x1e8675)
#8 0x7f929c7f1610 in read_coding_quadtree(thread_context*, int, int, int, int) [clone .localalias] (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x1e8610)
#9 0x7f929c7f15a3 in read_coding_quadtree(thread_context*, int, int, int, int) [clone .localalias] (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x1e85a3)
#10 0x7f929c7e8d49 in read_coding_tree_unit(thread_context*) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x1dfd49)
#11 0x7f929c7f1f06 in decode_substream(thread_context*, bool, bool) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x1e8f06)
#12 0x7f929c7f3c3f in read_slice_segment_data(thread_context*) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x1eac3f)
#13 0x7f929c746e6f in decoder_context::decode_slice_unit_sequential(image_unit*, slice_unit*) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x13de6f)
#14 0x7f929c747673 in decoder_context::decode_slice_unit_parallel(image_unit*, slice_unit*) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x13e673)
#15 0x7f929c746311 in decoder_context::decode_some(bool*) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x13d311)
#16 0x7f929c74605b in decoder_context::read_slice_NAL(bitreader&, NAL_unit*, nal_header&) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x13d05b)
#17 0x7f929c748be6 in decoder_context::decode_NAL(NAL_unit*) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x13fbe6)
#18 0x7f929c74924c in decoder_context::decode(int*) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x14024c)
#19 0x7f929c72f3f2 in de265_decode (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x1263f2)
#20 0x5613fc1319a5 in main (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/dec265/dec265+0x79a5)
#21 0x7f929c0d7d8f in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58
#22 0x7f929c0d7e3f in __libc_start_main_impl ../csu/libc-start.c:392
#23 0x5613fc12f7c4 in _start (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/dec265/dec265+0x57c4)
0x61b00000d190 is located 0 bytes to the right of 1552-byte region [0x61b00000cb80,0x61b00000d190)
allocated by thread T0 here:
#0 0x7f929ca5755c in __interceptor_posix_memalign ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:226
#1 0x7f929c78aa61 in ALLOC_ALIGNED(unsigned long, unsigned long) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x181a61)
#2 0x7f929c78b202 in de265_image_get_buffer(void*, de265_image_spec*, de265_image*, void*) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x182202)
#3 0x7f929c78d66b in de265_image::alloc_image(int, int, de265_chroma, std::shared_ptr<seq_parameter_set const>, bool, decoder_context*, long, void*, bool) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x18466b)
#4 0x7f929c7709fa in decoded_picture_buffer::new_image(std::shared_ptr<seq_parameter_set const>, decoder_context*, long, void*, bool) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x1679fa)
#5 0x7f929c749fd4 in decoder_context::generate_unavailable_reference_picture(seq_parameter_set const*, int, bool) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x140fd4)
#6 0x7f929c74cee1 in decoder_context::process_reference_picture_set(slice_segment_header*) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x143ee1)
#7 0x7f929c75046a in decoder_context::process_slice_segment_header(slice_segment_header*, de265_error*, long, nal_header*, void*) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x14746a)
#8 0x7f929c745970 in decoder_context::read_slice_NAL(bitreader&, NAL_unit*, nal_header&) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x13c970)
#9 0x7f929c748be6 in decoder_context::decode_NAL(NAL_unit*) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x13fbe6)
#10 0x7f929c74924c in decoder_context::decode(int*) (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x14024c)
#11 0x7f929c72f3f2 in de265_decode (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x1263f2)
#12 0x5613fc1319a5 in main (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/dec265/dec265+0x79a5)
#13 0x7f929c0d7d8f in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58
SUMMARY: AddressSanitizer: heap-buffer-overflow (/home/sumuchuan/Desktop/libde265_fuzz/libde265/build/libde265/libde265.so+0x2b6bbb) in ff_hevc_put_hevc_qpel_pixels_8_sse(short*, long, unsigned char const*, long, int, int, short*)
Shadow bytes around the buggy address:
0x0c367fff99e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c367fff99f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c367fff9a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c367fff9a10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c367fff9a20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c367fff9a30: 00 00[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c367fff9a40: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c367fff9a50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c367fff9a60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c367fff9a70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c367fff9a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==733371==ABORTING
POC
660.zip
Impact
Potentially causing DoS and RCE
Credit
Xdchase
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