Headline
CVE-2020-21606: heap-buffer-overflow in put_epel_16_fallback when decoding file · Issue #232 · strukturag/libde265
libde265 v1.0.4 contains a heap buffer overflow fault in the put_epel_16_fallback function, which can be exploited via a crafted a file.
heap-buffer-overflow in put_epel_16_fallback when decoding file
I found some problems during fuzzing
Test Version
dev version, git clone https://github.com/strukturag/libde265
Test Environment
root@ubuntu:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.6 LTS
Release: 16.04
Codename: xenial
Test Configure
./configure
configure: ---------------------------------------
configure: Building dec265 example: yes
configure: Building sherlock265 example: no
configure: Building encoder: yes
configure: ---------------------------------------
Test Program
dec265 [infile]
Asan Output
root@ubuntu:~# /opt/asan/bin/dec265 libde265-put_epel_16_fallback-heap_overflow.crash
WARNING: CTB outside of image area (concealing stream error...)
WARNING: pps header invalid
WARNING: faulty reference picture list
WARNING: pps header invalid
=================================================================
==39540==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x62b00001b510 at pc 0x000000433086 bp 0x7ffd99655f60 sp 0x7ffd99655f50
READ of size 2 at 0x62b00001b510 thread T0
#0 0x433085 in put_epel_16_fallback(short*, long, unsigned short const*, long, int, int, int, int, short*, int) /root/src/libde265/libde265/fallback-motion.cc:289
#1 0x52bfe0 in acceleration_functions::put_hevc_epel(short*, long, void const*, long, int, int, int, int, short*, int) const ../libde265/acceleration.h:298
#2 0x52dc7a in void mc_chroma<unsigned short>(base_context const*, seq_parameter_set const*, int, int, int, int, short*, int, unsigned short const*, int, int, int, int) /root/src/libde265/libde265/motion.cc:205
#3 0x51f88a in generate_inter_prediction_samples(base_context*, slice_segment_header const*, de265_image*, int, int, int, int, int, int, int, PBMotion const*) /root/src/libde265/libde265/motion.cc:382
#4 0x52b8f9 in decode_prediction_unit(base_context*, slice_segment_header const*, de265_image*, PBMotionCoding const&, int, int, int, int, int, int, int, int) /root/src/libde265/libde265/motion.cc:2107
#5 0x47995d in read_coding_unit(thread_context*, int, int, int, int) /root/src/libde265/libde265/slice.cc:4310
#6 0x47b6fe in read_coding_quadtree(thread_context*, int, int, int, int) /root/src/libde265/libde265/slice.cc:4647
#7 0x47338a in read_coding_tree_unit(thread_context*) /root/src/libde265/libde265/slice.cc:2861
#8 0x47beb1 in decode_substream(thread_context*, bool, bool) /root/src/libde265/libde265/slice.cc:4736
#9 0x47db9f in read_slice_segment_data(thread_context*) /root/src/libde265/libde265/slice.cc:5049
#10 0x40bf17 in decoder_context::decode_slice_unit_sequential(image_unit*, slice_unit*) /root/src/libde265/libde265/decctx.cc:843
#11 0x40c6d7 in decoder_context::decode_slice_unit_parallel(image_unit*, slice_unit*) /root/src/libde265/libde265/decctx.cc:945
#12 0x40b589 in decoder_context::decode_some(bool*) /root/src/libde265/libde265/decctx.cc:730
#13 0x40e23e in decoder_context::decode(int*) /root/src/libde265/libde265/decctx.cc:1329
#14 0x405a61 in de265_decode /root/src/libde265/libde265/de265.cc:346
#15 0x404972 in main /root/src/libde265/dec265/dec265.cc:764
#16 0x7fa1b901182f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
#17 0x402b28 in _start (/opt/asan/bin/dec265+0x402b28)
0x62b00001b510 is located 0 bytes to the right of 25360-byte region [0x62b000015200,0x62b00001b510)
allocated by thread T0 here:
#0 0x7fa1b9f12076 in __interceptor_posix_memalign (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x99076)
#1 0x43e00d in ALLOC_ALIGNED /root/src/libde265/libde265/image.cc:54
#2 0x43e725 in de265_image_get_buffer /root/src/libde265/libde265/image.cc:132
#3 0x440639 in de265_image::alloc_image(int, int, de265_chroma, std::shared_ptr<seq_parameter_set const>, bool, decoder_context*, long, void*, bool) /root/src/libde265/libde265/image.cc:384
#4 0x43afa4 in decoded_picture_buffer::new_image(std::shared_ptr<seq_parameter_set const>, decoder_context*, long, void*, bool) /root/src/libde265/libde265/dpb.cc:262
#5 0x40ee8b in decoder_context::generate_unavailable_reference_picture(seq_parameter_set const*, int, bool) /root/src/libde265/libde265/decctx.cc:1418
#6 0x411722 in decoder_context::process_reference_picture_set(slice_segment_header*) /root/src/libde265/libde265/decctx.cc:1648
#7 0x414cc9 in decoder_context::process_slice_segment_header(slice_segment_header*, de265_error*, long, nal_header*, void*) /root/src/libde265/libde265/decctx.cc:2066
#8 0x40acad in decoder_context::read_slice_NAL(bitreader&, NAL_unit*, nal_header&) /root/src/libde265/libde265/decctx.cc:639
#9 0x40dbb3 in decoder_context::decode_NAL(NAL_unit*) /root/src/libde265/libde265/decctx.cc:1230
#10 0x40e17b in decoder_context::decode(int*) /root/src/libde265/libde265/decctx.cc:1318
#11 0x405a61 in de265_decode /root/src/libde265/libde265/de265.cc:346
#12 0x404972 in main /root/src/libde265/dec265/dec265.cc:764
#13 0x7fa1b901182f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
SUMMARY: AddressSanitizer: heap-buffer-overflow /root/src/libde265/libde265/fallback-motion.cc:289 put_epel_16_fallback(short*, long, unsigned short const*, long, int, int, int, int, short*, int)
Shadow bytes around the buggy address:
0x0c567fffb650: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c567fffb660: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c567fffb670: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c567fffb680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c567fffb690: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c567fffb6a0: 00 00[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c567fffb6b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c567fffb6c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c567fffb6d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c567fffb6e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c567fffb6f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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
Heap right redzone: fb
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack partial redzone: f4
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
==39540==ABORTING
POC file
libde265-put_epel_16_fallback-heap_overflow.zip
password: leon.zhao.7
CREDIT
Zhao Liang, Huawei Weiran Labs
With the tip of the stable branch at the time of this bug report (d065715) on Ubuntu 20.04 (with gcc 9.4.0 and clang 10.0.0) on the aarch64 architecture, I do not get a heap out-of-bounds read, but a heap out-of-bounds write, that may lead to arbitrary code execution.
WARNING: CTB outside of image area (concealing stream error...)
WARNING: pps header invalid
SDL_Init() failed: Unable to open a console terminal
WARNING: faulty reference picture list
WARNING: pps header invalid
=================================================================
==781426==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xffff96314500 at pc 0xffff9d21bf14 bp 0xfffffa35bba0 sp 0xfffffa35bbc0
WRITE of size 2 at 0xffff96314500 thread T0
#0 0xffff9d21bf10 in put_weighted_bipred_16_fallback(unsigned short*, long, short const*, short const*, long, int, int, int, int, int, int, int, int) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x160f10)
#1 0xffff9d260c20 in acceleration_functions::put_weighted_bipred(void*, long, short const*, short const*, long, int, int, int, int, int, int, int, int) const (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1a5c20)
#2 0xffff9d253874 in generate_inter_prediction_samples(base_context*, slice_segment_header const*, de265_image*, int, int, int, int, int, int, int, PBMotion const*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x198874)
#3 0xffff9d25f574 in decode_prediction_unit(base_context*, slice_segment_header const*, de265_image*, PBMotionCoding const&, int, int, int, int, int, int, int, int) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1a4574)
#4 0xffff9d2a9380 in read_coding_unit(thread_context*, int, int, int, int) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1ee380)
#5 0xffff9d2ab4f0 in read_coding_quadtree(thread_context*, int, int, int, int) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1f04f0)
#6 0xffff9d2a18e4 in read_coding_tree_unit(thread_context*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1e68e4)
#7 0xffff9d2abe38 in decode_substream(thread_context*, bool, bool) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1f0e38)
#8 0xffff9d2adf84 in read_slice_segment_data(thread_context*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1f2f84)
#9 0xffff9d1e32b4 in decoder_context::decode_slice_unit_sequential(image_unit*, slice_unit*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1282b4)
#10 0xffff9d1e3bac in decoder_context::decode_slice_unit_parallel(image_unit*, slice_unit*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x128bac)
#11 0xffff9d1e2650 in decoder_context::decode_some(bool*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x127650)
#12 0xffff9d1e5c44 in decoder_context::decode(int*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x12ac44)
#13 0xffff9d1c943c in de265_decode (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x10e43c)
#14 0xaaaadfb974c0 in main (/home/azureuser/libde265/dec265/.libs/dec265+0x74c0)
#15 0xffff9ccb2e0c in __libc_start_main ../csu/libc-start.c:308
#16 0xaaaadfb94a90 (/home/azureuser/libde265/dec265/.libs/dec265+0x4a90)
0xffff96314500 is located 0 bytes to the right of 25344-byte region [0xffff9630e200,0xffff96314500)
allocated by thread T0 here:
#0 0xffff9d59b2d8 in __interceptor_posix_memalign ../../../../src/libsanitizer/asan/asan_malloc_linux.cc:217
#1 0xffff9d22b2fc in ALLOC_ALIGNED(unsigned long, unsigned long) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1702fc)
#2 0xffff9d22bbf0 in de265_image_get_buffer(void*, de265_image_spec*, de265_image*, void*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x170bf0)
#3 0xffff9d22e6a0 in de265_image::alloc_image(int, int, de265_chroma, std::shared_ptr<seq_parameter_set const>, bool, decoder_context*, encoder_context*, long, void*, bool) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1736a0)
#4 0xffff9d226bec in decoded_picture_buffer::new_image(std::shared_ptr<seq_parameter_set const>, decoder_context*, long, void*, bool) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x16bbec)
#5 0xffff9d1eccf4 in decoder_context::process_slice_segment_header(slice_segment_header*, de265_error*, long, nal_header*, void*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x131cf4)
#6 0xffff9d1e1bdc in decoder_context::read_slice_NAL(bitreader&, NAL_unit*, nal_header&) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x126bdc)
#7 0xffff9d1e54c8 in decoder_context::decode_NAL(NAL_unit*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x12a4c8)
#8 0xffff9d1e5b24 in decoder_context::decode(int*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x12ab24)
#9 0xffff9d1c943c in de265_decode (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x10e43c)
#10 0xaaaadfb974c0 in main (/home/azureuser/libde265/dec265/.libs/dec265+0x74c0)
#11 0xffff9ccb2e0c in __libc_start_main ../csu/libc-start.c:308
#12 0xaaaadfb94a90 (/home/azureuser/libde265/dec265/.libs/dec265+0x4a90)
SUMMARY: AddressSanitizer: heap-buffer-overflow (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x160f10) in put_weighted_bipred_16_fallback(unsigned short*, long, short const*, short const*, long, int, int, int, int, int, int, int, int)
Shadow bytes around the buggy address:
0x200ff2c62850: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x200ff2c62860: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x200ff2c62870: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x200ff2c62880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x200ff2c62890: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x200ff2c628a0:[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x200ff2c628b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x200ff2c628c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x200ff2c628d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x200ff2c628e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x200ff2c628f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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
==781426==ABORTING
The same happens on the x86_64 architecture:
WARNING: CTB outside of image area (concealing stream error...)
WARNING: pps header invalid
SDL_Init() failed: Unable to open a console terminal
WARNING: faulty reference picture list
WARNING: pps header invalid
=================================================================
==791137==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x62b000014508 at pc 0x7fdad54ad4fb bp 0x7fff67eb7c80 sp 0x7fff67eb7c70
WRITE of size 2 at 0x62b000014508 thread T0
#0 0x7fdad54ad4fa in put_weighted_bipred_16_fallback(unsigned short*, long, short const*, short const*, long, int, int, int, int, int, int, int, int) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x16b4fa)
#1 0x7fdad54e6469 in acceleration_functions::put_weighted_bipred(void*, long, short const*, short const*, long, int, int, int, int, int, int, int, int) const (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1a4469)
#2 0x7fdad54dbcf0 in generate_inter_prediction_samples(base_context*, slice_segment_header const*, de265_image*, int, int, int, int, int, int, int, PBMotion const*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x199cf0)
#3 0x7fdad54e5e7d in decode_prediction_unit(base_context*, slice_segment_header const*, de265_image*, PBMotionCoding const&, int, int, int, int, int, int, int, int) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1a3e7d)
#4 0x7fdad55253a6 in read_coding_unit(thread_context*, int, int, int, int) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1e33a6)
#5 0x7fdad55272bd in read_coding_quadtree(thread_context*, int, int, int, int) [clone .localalias] (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1e52bd)
#6 0x7fdad551e92d in read_coding_tree_unit(thread_context*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1dc92d)
#7 0x7fdad5527a81 in decode_substream(thread_context*, bool, bool) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1e5a81)
#8 0x7fdad55297ec in read_slice_segment_data(thread_context*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1e77ec)
#9 0x7fdad547880f in decoder_context::decode_slice_unit_sequential(image_unit*, slice_unit*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x13680f)
#10 0x7fdad5479011 in decoder_context::decode_slice_unit_parallel(image_unit*, slice_unit*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x137011)
#11 0x7fdad5477ca3 in decoder_context::decode_some(bool*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x135ca3)
#12 0x7fdad547ace2 in decoder_context::decode(int*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x138ce2)
#13 0x7fdad54610e0 in de265_decode (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x11f0e0)
#14 0x55a6ae05007f in main (/home/azureuser/libde265/dec265/.libs/dec265+0x807f)
#15 0x7fdad4e26082 in __libc_start_main ../csu/libc-start.c:308
#16 0x55a6ae04d9cd in _start (/home/azureuser/libde265/dec265/.libs/dec265+0x59cd)
0x62b000014508 is located 0 bytes to the right of 25352-byte region [0x62b00000e200,0x62b000014508)
allocated by thread T0 here:
#0 0x7fdad58776e5 in __interceptor_posix_memalign ../../../../src/libsanitizer/asan/asan_malloc_linux.cc:217
#1 0x7fdad54ba459 in ALLOC_ALIGNED(unsigned long, unsigned long) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x178459)
#2 0x7fdad54bac50 in de265_image_get_buffer(void*, de265_image_spec*, de265_image*, void*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x178c50)
#3 0x7fdad54bd2eb in de265_image::alloc_image(int, int, de265_chroma, std::shared_ptr<seq_parameter_set const>, bool, decoder_context*, encoder_context*, long, void*, bool) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x17b2eb)
#4 0x7fdad54b5da2 in decoded_picture_buffer::new_image(std::shared_ptr<seq_parameter_set const>, decoder_context*, long, void*, bool) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x173da2)
#5 0x7fdad5481332 in decoder_context::process_slice_segment_header(slice_segment_header*, de265_error*, long, nal_header*, void*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x13f332)
#6 0x7fdad54772ea in decoder_context::read_slice_NAL(bitreader&, NAL_unit*, nal_header&) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x1352ea)
#7 0x7fdad547a58c in decoder_context::decode_NAL(NAL_unit*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x13858c)
#8 0x7fdad547abe9 in decoder_context::decode(int*) (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x138be9)
#9 0x7fdad54610e0 in de265_decode (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x11f0e0)
#10 0x55a6ae05007f in main (/home/azureuser/libde265/dec265/.libs/dec265+0x807f)
#11 0x7fdad4e26082 in __libc_start_main ../csu/libc-start.c:308
SUMMARY: AddressSanitizer: heap-buffer-overflow (/home/azureuser/libde265/libde265/.libs/libde265.so.0+0x16b4fa) in put_weighted_bipred_16_fallback(unsigned short*, long, short const*, short const*, long, int, int, int, int, int, int, int, int)
Shadow bytes around the buggy address:
0x0c567fffa850: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c567fffa860: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c567fffa870: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c567fffa880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c567fffa890: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c567fffa8a0: 00[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c567fffa8b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c567fffa8c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c567fffa8d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c567fffa8e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c567fffa8f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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
==791137==ABORTING
I cannot reproduce this in the tip of the stable branch (b371427) on Ubuntu 20.04 (with gcc 9.4.0 and clang 10.0.0) on the x86_64 and aarch64 architectures.
This has been assigned CVE-2020-21606.
Related news
Gentoo Linux Security Advisory 202408-20
Gentoo Linux Security Advisory 202408-20 - Multiple vulnerabilities have been discovered in libde265, the worst of which could lead to arbitrary code execution. Versions greater than or equal to 1.0.11 are affected.
Ubuntu Security Notice USN-6617-1
Ubuntu Security Notice 6617-1 - It was discovered that libde265 could be made to write out of bounds. If a user or automated system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. It was discovered that libde265 could be made to write out of bounds. If a user or automated system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service or execute arbitrary code.
Debian Security Advisory 5346-1
Debian Linux Security Advisory 5346-1 - Multiple security issues were discovered in libde265, an implementation of the H.265 video codec which may result in denial of service and potentially the execution of arbitrary code if a malformed media file is processed.