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Message-ID: <2700333.W9CT5MSJyE@blackgate> Date: Tue, 18 Oct 2016 16:52:29 +0200 From: Agostino Sarubbo <ago@...too.org> To: oss-security@...ts.openwall.com Cc: cve-assign <cve-assign@...re.org> Subject: jasper: NULL pointer dereference in jp2_colr_destroy (jp2_cod.c) Description: jasper is an open-source initiative to provide a free software-based reference implementation of the codec specified in the JPEG-2000 Part-1 standard. Another round of fuzzing on an updated version (1.900.5) revealed a NULL pointer access in jp2_colr_destroy The complete ASan output: # imginfo -f $FILE cannot copy box data ASAN:DEADLYSIGNAL ================================================================= ==19664==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x00000041defd bp 0xbebebebebebebebe sp 0x7ffc50768570 T0) #0 0x41defc in atomic_compare_exchange_strong /var/tmp/portage/sys- devel/llvm-3.8.1-r2/work/llvm-3.8.1.src/projects/compiler- rt/lib/asan/../sanitizer_common/sanitizer_atomic_clang.h:81 #1 0x41defc in __asan::Allocator::AtomicallySetQuarantineFlag(__asan::AsanChunk*, void*, __sanitizer::BufferedStackTrace*) /var/tmp/portage/sys-devel/llvm-3.8.1- r2/work/llvm-3.8.1.src/projects/compiler-rt/lib/asan/asan_allocator.cc:465 #2 0x41defc in __asan::Allocator::Deallocate(void*, unsigned long, __sanitizer::BufferedStackTrace*, __asan::AllocType) /var/tmp/portage/sys- devel/llvm-3.8.1-r2/work/llvm-3.8.1.src/projects/compiler- rt/lib/asan/asan_allocator.cc:525 #3 0x41defc in __asan::asan_free(void*, __sanitizer::BufferedStackTrace*, __asan::AllocType) /var/tmp/portage/sys-devel/llvm-3.8.1- r2/work/llvm-3.8.1.src/projects/compiler-rt/lib/asan/asan_allocator.cc:709 #4 0x4c008c in free /var/tmp/portage/sys-devel/llvm-3.8.1- r2/work/llvm-3.8.1.src/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:41 #5 0x7f8dcb5bc940 in jp2_colr_destroy /tmp/portage/media- libs/jasper-1.900.5/work/jasper-1.900.5/src/libjasper/jp2/jp2_cod.c:443:3 #6 0x7f8dcb5c1f69 in jp2_box_destroy /tmp/portage/media- libs/jasper-1.900.5/work/jasper-1.900.5/src/libjasper/jp2/jp2_cod.c:211:3 #7 0x7f8dcb5c1f69 in jp2_box_get /tmp/portage/media- libs/jasper-1.900.5/work/jasper-1.900.5/src/libjasper/jp2/jp2_cod.c:307 #8 0x7f8dcb5c5dc0 in jp2_decode /tmp/portage/media- libs/jasper-1.900.5/work/jasper-1.900.5/src/libjasper/jp2/jp2_dec.c:156:16 #9 0x7f8dcb556f39 in jas_image_decode /tmp/portage/media- libs/jasper-1.900.5/work/jasper-1.900.5/src/libjasper/base/jas_image.c:380:16 #10 0x4f1686 in main /tmp/portage/media- libs/jasper-1.900.5/work/jasper-1.900.5/src/appl/imginfo.c:188:16 #11 0x7f8dca66561f in __libc_start_main /var/tmp/portage/sys- libs/glibc-2.22-r4/work/glibc-2.22/csu/libc-start.c:289 #12 0x418e68 in _init (/usr/bin/imginfo+0x418e68) AddressSanitizer can not provide additional info. SUMMARY: AddressSanitizer: SEGV /var/tmp/portage/sys-devel/llvm-3.8.1- r2/work/llvm-3.8.1.src/projects/compiler- rt/lib/asan/../sanitizer_common/sanitizer_atomic_clang.h:81 in atomic_compare_exchange_strong ==19664==ABORTING Affected version: 1.900.5 Fixed version: N/A Commit fix: N/A Credit: This bug was discovered by Agostino Sarubbo of Gentoo. CVE: N/A Timeline: 2016-10-17: bug discovered 2016-10-17: bug reported to upstream 2016-10-18: blog post about the issue Note: This bug was found with American Fuzzy Lop. Permalink: https://blogs.gentoo.org/ago/2016/10/18/jasper-null-pointer-dereference-in-jp2_colr_destroy-jp2_cod-c
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