{"id":2042,"date":"2017-08-28T15:49:10","date_gmt":"2017-08-28T13:49:10","guid":{"rendered":"http:\/\/blogs.gentoo.org\/ago\/?p=2042"},"modified":"2017-08-31T09:15:16","modified_gmt":"2017-08-31T07:15:16","slug":"openjpeg-heap-based-buffer-overflow-in-opj_t2_encode_packet-t2-c","status":"publish","type":"post","link":"https:\/\/blogs.gentoo.org\/ago\/2017\/08\/28\/openjpeg-heap-based-buffer-overflow-in-opj_t2_encode_packet-t2-c\/","title":{"rendered":"openjpeg: heap-based buffer overflow in opj_t2_encode_packet (t2.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 -r 20,10,1 -jpip -EPH -SOP -cinema2K 24 -n 1 -i $FILE -o null.j2k\r\nTIFFReadDirectoryCheckOrder: Warning, Invalid TIFF directory; tags are not sorted in ascending order.\r\nTIFFReadDirectory: Warning, Unknown field with tag 27154 (0x6a12) encountered.\r\nTIFFReadDirectory: Warning, Unknown field with tag 32512 (0x7f00) encountered.\r\nTIFFReadDirectory: Warning, Unknown field with tag 15163 (0x3b3b) encountered.\r\nTIFFReadDirectory: Warning, Unknown field with tag 15318 (0x3bd6) encountered.\r\nTIFFFetchNormalTag: Warning, Incorrect count for \"FillOrder\"; tag ignored.\r\nTIFFReadDirectory: Warning, TIFF directory is missing required \"StripByteCounts\" field, calculating from imagelength.\r\n=================================================================\r\n==114390==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6080000000f4 at pc 0x7f05a3983aa9 bp 0x7ffd1be5ba40 sp 0x7ffd1be5ba38\r\nWRITE of size 1 at 0x6080000000f4 thread T0\r\n    #0 0x7f05a3983aa8 in opj_t2_encode_packet \/var\/tmp\/portage\/media-libs\/openjpeg-9999\/work\/openjpeg-9999\/src\/lib\/openjp2\/t2.c:632:14\r\n    #1 0x7f05a3980801 in opj_t2_encode_packets \/var\/tmp\/portage\/media-libs\/openjpeg-9999\/work\/openjpeg-9999\/src\/lib\/openjp2\/t2.c:316:23\r\n    #2 0x7f05a399619b in opj_tcd_t2_encode \/var\/tmp\/portage\/media-libs\/openjpeg-9999\/work\/openjpeg-9999\/src\/lib\/openjp2\/tcd.c:2217:11\r\n    #3 0x7f05a399619b in opj_tcd_encode_tile \/var\/tmp\/portage\/media-libs\/openjpeg-9999\/work\/openjpeg-9999\/src\/lib\/openjp2\/tcd.c:1390\r\n    #4 0x7f05a38b5e2b in opj_j2k_write_sod \/var\/tmp\/portage\/media-libs\/openjpeg-9999\/work\/openjpeg-9999\/src\/lib\/openjp2\/j2k.c:4661:11\r\n    #5 0x7f05a38b5e2b in opj_j2k_write_all_tile_parts \/var\/tmp\/portage\/media-libs\/openjpeg-9999\/work\/openjpeg-9999\/src\/lib\/openjp2\/j2k.c:11586\r\n    #6 0x7f05a38b5e2b in opj_j2k_post_write_tile \/var\/tmp\/portage\/media-libs\/openjpeg-9999\/work\/openjpeg-9999\/src\/lib\/openjp2\/j2k.c:11287\r\n    #7 0x7f05a38b445d in opj_j2k_encode \/var\/tmp\/portage\/media-libs\/openjpeg-9999\/work\/openjpeg-9999\/src\/lib\/openjp2\/j2k.c:11028:15\r\n    #8 0x7f05a38ff2f8 in opj_encode \/var\/tmp\/portage\/media-libs\/openjpeg-9999\/work\/openjpeg-9999\/src\/lib\/openjp2\/openjpeg.c:775:20\r\n    #9 0x50b942 in main \/var\/tmp\/portage\/media-libs\/openjpeg-9999\/work\/openjpeg-9999\/src\/bin\/jp2\/opj_compress.c:1993:36\r\n    #10 0x7f05a2296680 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    #11 0x41bc18 in _start (\/usr\/bin\/opj_compress+0x41bc18)\r\n\r\n0x6080000000f4 is located 0 bytes to the right of 84-byte region [0x6080000000a0,0x6080000000f4)\r\nallocated by thread T0 here:\r\n    #0 0x4d15c8 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 0x7f05a39aae29 in opj_malloc \/var\/tmp\/portage\/media-libs\/openjpeg-9999\/work\/openjpeg-9999\/src\/lib\/openjp2\/opj_malloc.c:196:12\r\n    #2 0x7f05a38e1760 in opj_j2k_update_rates \/var\/tmp\/portage\/media-libs\/openjpeg-9999\/work\/openjpeg-9999\/src\/lib\/openjp2\/j2k.c:5157:22\r\n    #3 0x7f05a38b837f in opj_j2k_exec \/var\/tmp\/portage\/media-libs\/openjpeg-9999\/work\/openjpeg-9999\/src\/lib\/openjp2\/j2k.c:7954:33\r\n    #4 0x7f05a38b837f in opj_j2k_start_compress \/var\/tmp\/portage\/media-libs\/openjpeg-9999\/work\/openjpeg-9999\/src\/lib\/openjp2\/j2k.c:11103\r\n    #5 0x7f05a38ff19c in opj_start_compress \/var\/tmp\/portage\/media-libs\/openjpeg-9999\/work\/openjpeg-9999\/src\/lib\/openjp2\/openjpeg.c:758:20\r\n    #6 0x50b90f in main \/var\/tmp\/portage\/media-libs\/openjpeg-9999\/work\/openjpeg-9999\/src\/bin\/jp2\/opj_compress.c:1970:20\r\n    #7 0x7f05a2296680 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-9999\/work\/openjpeg-9999\/src\/lib\/openjp2\/t2.c:632:14 in opj_t2_encode_packet\r\nShadow bytes around the buggy address:\r\n  0x0c107fff7fc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\r\n  0x0c107fff7fd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\r\n  0x0c107fff7fe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\r\n  0x0c107fff7ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\r\n  0x0c107fff8000: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 fa\r\n=&gt;0x0c107fff8010: fa fa fa fa 00 00 00 00 00 00 00 00 00 00[04]fa\r\n  0x0c107fff8020: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\r\n  0x0c107fff8030: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\r\n  0x0c107fff8040: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\r\n  0x0c107fff8050: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\r\n  0x0c107fff8060: 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==114390==ABORTING\r\nCINEMA 2K profile activated\r\nOther options specified could be overridden\r\nWARNING:\r\nInput image bitdepth is 4 bits\r\nTIF conversion has automatically rescaled to 12-bits\r\nto comply with cinema profiles.\r\n[WARNING] JPEG 2000 Profile-3 and 4 (2k\/4k dc profile) requires:\r\n1 single quality layer-&gt; Number of layers forced to 1 (rather than 3)\r\n-&gt; Rate of the last layer (1.0) will be used[INFO] tile number 1 \/ 1\r\n<\/font><\/pre>\n<p><strong>Affected version:<\/strong><br \/>\nMaster at 2017-08-16 and maybe past releases<\/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\/c535531f03369623b9b833ef41952c62257b507e\">https:\/\/github.com\/uclouvain\/openjpeg\/commit\/c535531f03369623b9b833ef41952c62257b507e<\/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-2017-14039<\/p>\n<p><strong>Reproducer:<\/strong><br \/>\n<a href=\"https:\/\/github.com\/asarubbo\/poc\/blob\/master\/00322-openjpeg-heapoverflow-opj_t2_encode_packet\">https:\/\/github.com\/asarubbo\/poc\/blob\/master\/00322-openjpeg-heapoverflow-opj_t2_encode_packet<\/a><\/p>\n<p><strong>Timeline:<\/strong><br \/>\n2017-08-16: bug discovered and reported to upstream<br \/>\n2017-08-16: upstream released a patch<br \/>\n2017-08-28: blog post about the issue<br \/>\n2017-08-30: 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=\"AEGcvBdD2K\" class=\"wp-embedded-content\"><p><a href=\"http:\/\/blogs.gentoo.org\/ago\/2017\/08\/28\/openjpeg-heap-based-buffer-overflow-in-opj_t2_encode_packet-t2-c\/\">openjpeg: heap-based buffer overflow in opj_t2_encode_packet (t2.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\/28\/openjpeg-heap-based-buffer-overflow-in-opj_t2_encode_packet-t2-c\/embed\/#?secret=AEGcvBdD2K\" data-secret=\"AEGcvBdD2K\" width=\"600\" height=\"338\" title=\"&#8220;openjpeg: heap-based buffer overflow in opj_t2_encode_packet (t2.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 -r 20,10,1 -jpip -EPH -SOP -cinema2K 24 -n 1 -i $FILE -o null.j2k TIFFReadDirectoryCheckOrder: Warning, Invalid TIFF directory; tags are not sorted in &hellip; <a href=\"https:\/\/blogs.gentoo.org\/ago\/2017\/08\/28\/openjpeg-heap-based-buffer-overflow-in-opj_t2_encode_packet-t2-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-wW","_links":{"self":[{"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/posts\/2042"}],"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=2042"}],"version-history":[{"count":7,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/posts\/2042\/revisions"}],"predecessor-version":[{"id":2096,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/posts\/2042\/revisions\/2096"}],"wp:attachment":[{"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/media?parent=2042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/categories?post=2042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/tags?post=2042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}