{"id":2023,"date":"2017-08-16T13:43:12","date_gmt":"2017-08-16T11:43:12","guid":{"rendered":"http:\/\/blogs.gentoo.org\/ago\/?p=2023"},"modified":"2017-09-06T09:30:48","modified_gmt":"2017-09-06T07:30:48","slug":"openjpeg-heap-based-buffer-overflow-in-opj_mqc_flush-mqc-c","status":"publish","type":"post","link":"https:\/\/blogs.gentoo.org\/ago\/2017\/08\/16\/openjpeg-heap-based-buffer-overflow-in-opj_mqc_flush-mqc-c\/","title":{"rendered":"openjpeg: heap-based buffer overflow in opj_mqc_flush (mqc.c)"},"content":{"rendered":"<p><strong>Description<\/strong>:<br \/>\n<a href=\"http:\/\/www.openjpeg.org\">openjpeg<\/a> is an open-source JPEG 2000 library.<\/p>\n<p>The complete ASan output of the issue:<\/p>\n<pre><font size=\"2\"># opj_compress -n 1 -i $FILE -o null.j2c\r\n==81142==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6020000000b6 at pc 0x7fc39ca4a189 bp 0x7fff91c10aa0 sp 0x7fff91c10a98\r\nWRITE of size 1 at 0x6020000000b6 thread T0\r\n    #0 0x7fc39ca4a188 in opj_mqc_flush \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/mqc.c\r\n    #1 0x7fc39ca7db6a in opj_t1_encode_cblk \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/t1.c:2213:21\r\n    #2 0x7fc39ca7db6a in opj_t1_encode_cblks \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/t1.c:2061\r\n    #3 0x7fc39cae8689 in opj_tcd_t1_encode \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/tcd.c:2184:11\r\n    #4 0x7fc39cae8689 in opj_tcd_encode_tile \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/tcd.c:1362\r\n    #5 0x7fc39ca05527 in opj_j2k_write_sod \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/j2k.c:4661:11\r\n    #6 0x7fc39ca05527 in opj_j2k_write_first_tile_part \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/j2k.c:11507\r\n    #7 0x7fc39ca05527 in opj_j2k_post_write_tile \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/j2k.c:11265\r\n    #8 0x7fc39ca040fd in opj_j2k_encode \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/j2k.c:11014:15\r\n    #9 0x7fc39ca4edf8 in opj_encode \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/openjpeg.c:775:20\r\n    #10 0x50b9a2 in main \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/bin\/jp2\/opj_compress.c:1990:36\r\n    #11 0x7fc39b3e6680 in __libc_start_main \/var\/tmp\/portage\/sys-libs\/glibc-2.23-r4\/work\/glibc-2.23\/csu\/..\/csu\/libc-start.c:289\r\n    #12 0x41bc78 in _start (\/usr\/bin\/opj_compress+0x41bc78)\r\n\r\n0x6020000000b6 is located 0 bytes to the right of 6-byte region [0x6020000000b0,0x6020000000b6)\r\nallocated by thread T0 here:\r\n    #0 0x4d1628 in malloc \/var\/tmp\/portage\/sys-libs\/compiler-rt-sanitizers-4.0.1\/work\/compiler-rt-4.0.1.src\/lib\/asan\/asan_malloc_linux.cc:66\r\n    #1 0x7fc39cafa8a9 in opj_malloc \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/opj_malloc.c:196:12\r\n    #2 0x7fc39cae3522 in opj_tcd_code_block_enc_allocate_data \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/tcd.c:1196:42\r\n    #3 0x7fc39cae3522 in opj_tcd_init_tile \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/tcd.c:1113\r\n    #4 0x7fc39c9ff364 in opj_j2k_pre_write_tile \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/j2k.c:11115:11\r\n    #5 0x7fc39c9ff364 in opj_j2k_encode \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/j2k.c:10958\r\n    #6 0x7fc39ca4edf8 in opj_encode \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/openjpeg.c:775:20\r\n    #7 0x50b9a2 in main \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/bin\/jp2\/opj_compress.c:1990:36\r\n    #8 0x7fc39b3e6680 in __libc_start_main \/var\/tmp\/portage\/sys-libs\/glibc-2.23-r4\/work\/glibc-2.23\/csu\/..\/csu\/libc-start.c:289\r\n\r\nSUMMARY: AddressSanitizer: heap-buffer-overflow \/var\/tmp\/portage\/media-libs\/openjpeg-2.2.0\/work\/openjpeg-2.2.0\/src\/lib\/openjp2\/mqc.c in opj_mqc_flush\r\nShadow bytes around the buggy address:\r\n  0x0c047fff7fc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\r\n  0x0c047fff7fd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\r\n  0x0c047fff7fe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\r\n  0x0c047fff7ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\r\n  0x0c047fff8000: fa fa fd fa fa fa 00 00 fa fa 00 00 fa fa 00 00\r\n=&gt;0x0c047fff8010: fa fa 00 fa fa fa[06]fa fa fa 06 fa fa fa 06 fa\r\n  0x0c047fff8020: fa fa 06 fa fa fa fa fa fa fa fa fa fa fa fa fa\r\n  0x0c047fff8030: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\r\n  0x0c047fff8040: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\r\n  0x0c047fff8050: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\r\n  0x0c047fff8060: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\r\nShadow byte legend (one shadow byte represents 8 application bytes):\r\n  Addressable:           00\r\n  Partially addressable: 01 02 03 04 05 06 07 \r\n  Heap left redzone:       fa\r\n  Freed heap region:       fd\r\n  Stack left redzone:      f1\r\n  Stack mid redzone:       f2\r\n  Stack right redzone:     f3\r\n  Stack after return:      f5\r\n  Stack use after scope:   f8\r\n  Global redzone:          f9\r\n  Global init order:       f6\r\n  Poisoned by user:        f7\r\n  Container overflow:      fc\r\n  Array cookie:            ac\r\n  Intra object redzone:    bb\r\n  ASan internal:           fe\r\n  Left alloca redzone:     ca\r\n  Right alloca redzone:    cb\r\n==81142==ABORTING\r\n[INFO] tile number 1 \/ 1\r\n<\/font><\/pre>\n<p><strong>Affected version:<\/strong><br \/>\n2.2.0<\/p>\n<p><strong>Fixed version:<\/strong><br \/>\nN\/A<\/p>\n<p><strong>Commit fix:<\/strong><br \/>\n<a href=\"https:\/\/github.com\/uclouvain\/openjpeg\/commit\/afb308b9ccbe129608c9205cf3bb39bbefad90b9\">https:\/\/github.com\/uclouvain\/openjpeg\/commit\/afb308b9ccbe129608c9205cf3bb39bbefad90b9<\/a><\/p>\n<p><strong>Credit:<\/strong><br \/>\nThis bug was discovered by Agostino Sarubbo of Gentoo.<\/p>\n<p><strong>CVE:<\/strong><br \/>\nCVE-2017-14151<\/p>\n<p><strong>Reproducer:<\/strong><br \/>\n<a href=\"https:\/\/github.com\/asarubbo\/poc\/blob\/master\/00314-openjpeg-heapoverflow-opj_mqc_flush\">https:\/\/github.com\/asarubbo\/poc\/blob\/master\/00314-openjpeg-heapoverflow-opj_mqc_flush<\/a><\/p>\n<p><strong>Timeline:<\/strong><br \/>\n2017-08-14: bug discovered and reported to upstream<br \/>\n2017-08-14: upstream releases a fix<br \/>\n2017-08-16: blog post about the issue<br \/>\n2017-09-05: CVE assigned<\/p>\n<p><strong>Note:<\/strong><br \/>\nThis bug was found with <a href=\"http:\/\/lcamtuf.coredump.cx\/afl\">American Fuzzy Lop<\/a>.<br \/>\nThis bug was identified with bare metal servers donated by <a href=\"https:\/\/www.packet.net\/\">Packet<\/a>. This work is also supported by the <a href=\"https:\/\/www.coreinfrastructure.org\">Core Infrastructure Initiative<\/a>.<\/p>\n<p><strong>Permalink:<\/strong><\/p>\n<blockquote data-secret=\"gE2NWczckL\" class=\"wp-embedded-content\"><p><a href=\"http:\/\/blogs.gentoo.org\/ago\/2017\/08\/16\/openjpeg-heap-based-buffer-overflow-in-opj_mqc_flush-mqc-c\/\">openjpeg: heap-based buffer overflow in opj_mqc_flush (mqc.c)<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" src=\"http:\/\/blogs.gentoo.org\/ago\/2017\/08\/16\/openjpeg-heap-based-buffer-overflow-in-opj_mqc_flush-mqc-c\/embed\/#?secret=gE2NWczckL\" data-secret=\"gE2NWczckL\" width=\"600\" height=\"338\" title=\"&#8220;openjpeg: heap-based buffer overflow in opj_mqc_flush (mqc.c)&#8221; &#8212; agostino&#039;s blog\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Description: openjpeg is an open-source JPEG 2000 library. The complete ASan output of the issue: # opj_compress -n 1 -i $FILE -o null.j2c ==81142==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6020000000b6 at pc 0x7fc39ca4a189 bp 0x7fff91c10aa0 sp 0x7fff91c10a98 WRITE of size 1 &hellip; <a href=\"https:\/\/blogs.gentoo.org\/ago\/2017\/08\/16\/openjpeg-heap-based-buffer-overflow-in-opj_mqc_flush-mqc-c\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":140,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true},"categories":[12,10],"tags":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2EaBc-wD","_links":{"self":[{"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/posts\/2023"}],"collection":[{"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/users\/140"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/comments?post=2023"}],"version-history":[{"count":2,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/posts\/2023\/revisions"}],"predecessor-version":[{"id":2119,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/posts\/2023\/revisions\/2119"}],"wp:attachment":[{"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/media?parent=2023"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/categories?post=2023"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/tags?post=2023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}