http://bugzilla.opensuse.org/show_bug.cgi?id=1026979 http://bugzilla.opensuse.org/show_bug.cgi?id=1026979#c1 --- Comment #1 from Mikhail Kasimov --- Oops, sorry... Ref: http://seclists.org/oss-sec/2017/q1/505 ============================================= Description: audiofile is a C-based library for reading and writing audio files in many common formats. A fuzz with a wav file as input produced an heap overflow. The complete ASan output: # sfinfo $FILE ==6096==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61a00001f708 at pc 0x0000004bbc35 bp 0x7ffd65dbabf0 sp 0x7ffd65dba3a0 READ of size 33872 at 0x61a00001f708 thread T0 #0 0x4bbc34 in __asan_memcpy /tmp/portage/sys-devel/llvm-3.9.1/work/llvm-3.9.1.src/projects/compiler-rt/lib/asan/asan_interceptors.cc:413 #1 0x7efec209d7df in MSADPCM::initializeCoefficients() /tmp/portage/media-libs/audiofile-0.3.6-r3/work/audiofile-0.3.6/libaudiofile/modules/MSADPCM.cpp:369:3 #2 0x7efec209d7df in MSADPCM::createDecompress(Track*, File*, bool, bool, long*) /tmp/portage/media-libs/audiofile-0.3.6-r3/work/audiofile-0.3.6/libaudiofile/modules/MSADPCM.cpp:387 #3 0x7efec2070da7 in ModuleState::initFileModule(_AFfilehandle*, Track*) /tmp/portage/media-libs/audiofile-0.3.6-r3/work/audiofile-0.3.6/libaudiofile/modules/ModuleState.cpp:72:18 #4 0x7efec207189d in ModuleState::init(_AFfilehandle*, Track*) /tmp/portage/media-libs/audiofile-0.3.6-r3/work/audiofile-0.3.6/libaudiofile/modules/ModuleState.cpp:98:6 #5 0x7efec2053969 in _afOpenFile(int, File*, char const*, _AFfilehandle**, _AFfilesetup*) /tmp/portage/media-libs/audiofile-0.3.6-r3/work/audiofile-0.3.6/libaudiofile/openclose.cpp:396:18 #6 0x7efec2054331 in afOpenFile /tmp/portage/media-libs/audiofile-0.3.6-r3/work/audiofile-0.3.6/libaudiofile/openclose.cpp:217:6 #7 0x50a278 in printfileinfo /tmp/portage/media-libs/audiofile-0.3.6-r3/work/audiofile-0.3.6/sfcommands/printinfo.c:45:22 #8 0x509f98 in main /tmp/portage/media-libs/audiofile-0.3.6-r3/work/audiofile-0.3.6/sfcommands/sfinfo.c:113:4 #9 0x7efec111d78f in __libc_start_main /tmp/portage/sys-libs/glibc-2.23-r3/work/glibc-2.23/csu/../csu/libc-start.c:289 #10 0x419b68 in _init (/usr/bin/sfinfo+0x419b68) 0x61a00001f708 is located 0 bytes to the right of 1160-byte region [0x61a00001f280,0x61a00001f708) allocated by thread T0 here: #0 0x4d2928 in malloc /tmp/portage/sys-devel/llvm-3.9.1/work/llvm-3.9.1.src/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:64 #1 0x7efec0b7c687 in operator new(unsigned long) (/usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/libstdc++.so.6+0xb2687) #2 0x7efec2052d63 in _afOpenFile(int, File*, char const*, _AFfilehandle**, _AFfilesetup*) /tmp/portage/media-libs/audiofile-0.3.6-r3/work/audiofile-0.3.6/libaudiofile/openclose.cpp:337:15 #3 0x7efec2054331 in afOpenFile /tmp/portage/media-libs/audiofile-0.3.6-r3/work/audiofile-0.3.6/libaudiofile/openclose.cpp:217:6 #4 0x50a278 in printfileinfo /tmp/portage/media-libs/audiofile-0.3.6-r3/work/audiofile-0.3.6/sfcommands/printinfo.c:45:22 #5 0x509f98 in main /tmp/portage/media-libs/audiofile-0.3.6-r3/work/audiofile-0.3.6/sfcommands/sfinfo.c:113:4 #6 0x7efec111d78f in __libc_start_main /tmp/portage/sys-libs/glibc-2.23-r3/work/glibc-2.23/csu/../csu/libc-start.c:289 SUMMARY: AddressSanitizer: heap-buffer-overflow /tmp/portage/sys-devel/llvm-3.9.1/work/llvm-3.9.1.src/projects/compiler-rt/lib/asan/asan_interceptors.cc:413 in __asan_memcpy Shadow bytes around the buggy address: 0x0c347fffbe90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c347fffbea0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c347fffbeb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c347fffbec0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c347fffbed0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 =>0x0c347fffbee0: 00[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c347fffbef0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c347fffbf00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c347fffbf10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c347fffbf20: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c347fffbf30: 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 Left alloca redzone: ca Right alloca redzone: cb ==6096==ABORTING Affected version: 0.3.6 Fixed version: N/A Commit fix: N/A Credit: This bug was discovered by Agostino Sarubbo of Gentoo. CVE: N/A Reproducer: https://github.com/asarubbo/poc/blob/master/00136-audiofile-heapoverflow-MSA... Timeline: 2017-01-30: bug discovered and reported to upstream 2017-02-20: blog post about the issue Note: This bug was found with American Fuzzy Lop. Permalink: https://blogs.gentoo.org/ago/2017/02/20/audiofile-heap-based-buffer-overflow... ============================================= -- You are receiving this mail because: You are on the CC list for the bug.