Headline
CVE-2022-38863: #2405 (A heap-buffer-overflow occurred in function mp_getbits() of libmpdemux/mpeg_hdr.c) – MPlayer
Certain The MPlayer Project products are vulnerable to Buffer Overflow via function mp_getbits() of libmpdemux/mpeg_hdr.c which affects mencoder and mplayer. This affects mecoder SVN-r38374-13.0.1 and mplayer SVN-r38374-13.0.1.
#2405 closed defect (fixed)
Reported by:
Owned by:
beastd
Priority:
normal
Component:
undetermined
Version:
HEAD
Severity:
major
Keywords:
Cc:
Blocked By:
Blocking:
Reproduced by developer:
no
Analyzed by developer:
no
Version: SVN-r38374-13.0.1
Build command: …/configure --disable-ffmpeg_a && make (compiling with asan)
Summary of the bug: An heap-buffer-overflow is found in fucnction mp_getbits() which affects mencoder and mplayer. The attached file can reproduce this issue (ASAN-recompilation is needed).
How to reproduce:
1.Command: ./mencoder -ovc lavc -oac lavc -o /dev/null ./testcase
./mplayer ./testcase
2.Result:
MPlayer SVN-r38374-13.0.1 © 2000-2022 MPlayer Team
Playing /home/jlx/crashes/id^%000297,sig^%06,src^%003761,time^%206342676,execs^%10621452,op^%havoc,rep^%8. libavformat version 58.29.100 (external) MPEG-PS file format detected. MPEG: No audio stream found -> no sound. ================================================================= ==1487==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x602000002d98 at pc 0x555555d3906e bp 0x7fffffffc4a0 sp 0x7fffffffc498 READ of size 1 at 0x602000002d98 thread T0 #0 0x555555d3906d in mp_getbits /home/jlx/good_mplayer/mplayer/libmpdemux/mpeg_hdr.c:174:12 #1 0x555555d3906d in read_golomb /home/jlx/good_mplayer/mplayer/libmpdemux/mpeg_hdr.c:296:10 #2 0x555555d3906d in read_golomb_s /home/jlx/good_mplayer/mplayer/libmpdemux/mpeg_hdr.c:314:20 #3 0x555555d3906d in h264_parse_sps /home/jlx/good_mplayer/mplayer/libmpdemux/mpeg_hdr.c:424:22
0x602000002d98 is located 0 bytes to the right of 8-byte region [0x602000002d90,0x602000002d98) allocated by thread T0 here: #0 0x5555558971cd in malloc (/home/jlx/good_mplayer/asan_mplayer/mplayer+0x3431cd) #1 0x555555d34e40 in h264_parse_sps /home/jlx/good_mplayer/mplayer/libmpdemux/mpeg_hdr.c:404:18
SUMMARY: AddressSanitizer: heap-buffer-overflow /home/jlx/good_mplayer/mplayer/libmpdemux/mpeg_hdr.c:174:12 in mp_getbits Shadow bytes around the buggy address: 0x0c047fff8560: fa fa 00 00 fa fa 00 00 fa fa 00 00 fa fa 00 00 0x0c047fff8570: fa fa 00 00 fa fa 00 00 fa fa 00 00 fa fa 00 00 0x0c047fff8580: fa fa 00 00 fa fa 00 00 fa fa 00 00 fa fa 00 00 0x0c047fff8590: fa fa 00 00 fa fa 00 00 fa fa 00 00 fa fa 00 00 0x0c047fff85a0: fa fa 00 00 fa fa 00 00 fa fa 06 fa fa fa fd fd =>0x0c047fff85b0: fa fa 00[fa]fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff85c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff85d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff85e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff85f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff8600: 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 ==1487==ABORTING
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