{"id":725,"date":"2016-10-16T12:17:58","date_gmt":"2016-10-16T10:17:58","guid":{"rendered":"http:\/\/blogs.gentoo.org\/ago\/?p=725"},"modified":"2016-10-16T20:48:42","modified_gmt":"2016-10-16T18:48:42","slug":"jasper-two-divide-by-zero-in-jpc_dec_process_siz-jpc_dec-c","status":"publish","type":"post","link":"https:\/\/blogs.gentoo.org\/ago\/2016\/10\/16\/jasper-two-divide-by-zero-in-jpc_dec_process_siz-jpc_dec-c\/","title":{"rendered":"jasper: two divide-by-zero in jpc_dec_process_siz (jpc_dec.c)"},"content":{"rendered":"<p><strong>Description<\/strong>:<br \/>\n<a href=\"http:\/\/www.ece.uvic.ca\/~frodo\/jasper\/\">jasper<\/a> is an open-source initiative to provide a free software-based reference implementation of the codec specified in the JPEG-2000 Part-1 standard.<\/p>\n<p>A fuzzing revelaled two divide-by-zero in jpc_dec_process_siz<\/p>\n<p>Since jasper seems to be dead for years, I first posted this bug on oss-security. Since few days I noticed that the development is alive on github, I posted the bug to the maintainer which comes with a fast response\/fix.<\/p>\n<p>The complete ASan output:<\/p>\n<pre><font size=\"2\"># imginfo -f $FILE\r\nwarning: trailing garbage in marker segment (2 bytes)\r\nASAN:DEADLYSIGNAL\r\n=================================================================\r\n==31103==ERROR: AddressSanitizer: FPE on unknown address 0x7f5b9237e7df (pc 0x7f5b9237e7df bp 0x7fff3818a0c0 sp 0x7fff38189fa0 T0)\r\n    #0 0x7f5b9237e7de in jpc_dec_process_siz \/tmp\/jasper-version-1.900.3\/src\/libjasper\/jpc\/jpc_dec.c:1194:17\r\n    #1 0x7f5b923842b2 in jpc_dec_decode \/tmp\/jasper-version-1.900.3\/src\/libjasper\/jpc\/jpc_dec.c:390:10\r\n    #2 0x7f5b923842b2 in jpc_decode \/tmp\/jasper-version-1.900.3\/src\/libjasper\/jpc\/jpc_dec.c:254\r\n    #3 0x7f5b92327a9a in jas_image_decode \/tmp\/jasper-version-1.900.3\/src\/libjasper\/base\/jas_image.c:372:16\r\n    #4 0x4f11bd in main \/tmp\/jasper-version-1.900.3\/src\/appl\/imginfo.c:179:16\r\n    #5 0x7f5b9143f61f in __libc_start_main \/var\/tmp\/portage\/sys-libs\/glibc-2.22-r4\/work\/glibc-2.22\/csu\/libc-start.c:289\r\n    #6 0x418bc8 in _start (\/tmp\/jasper-version-1.900.3\/src\/appl\/.libs\/imginfo+0x418bc8)\r\n\r\nAddressSanitizer can not provide additional info.\r\nSUMMARY: AddressSanitizer: FPE \/tmp\/jasper-version-1.900.3\/src\/libjasper\/jpc\/jpc_dec.c:1194:17 in jpc_dec_process_siz\r\n==31103==ABORTING\r\n\r\n\r\n# imginfo -f $FILE\r\nwarning: trailing garbage in marker segment (5 bytes)\r\nASAN:DEADLYSIGNAL\r\n=================================================================\r\n==24077==ERROR: AddressSanitizer: FPE on unknown address 0x7f78c36f9822 (pc 0x7f78c36f9822 bp 0x7ffe2bff10c0 sp 0x7ffe2bff0fa0 T0)\r\n    #0 0x7f78c36f9821 in jpc_dec_process_siz \/tmp\/jasper-version-1.900.3\/src\/libjasper\/jpc\/jpc_dec.c:1196:18\r\n    #1 0x7f78c36ff2b2 in jpc_dec_decode \/tmp\/jasper-version-1.900.3\/src\/libjasper\/jpc\/jpc_dec.c:390:10\r\n    #2 0x7f78c36ff2b2 in jpc_decode \/tmp\/jasper-version-1.900.3\/src\/libjasper\/jpc\/jpc_dec.c:254\r\n    #3 0x7f78c36a2a9a in jas_image_decode \/tmp\/jasper-version-1.900.3\/src\/libjasper\/base\/jas_image.c:372:16\r\n    #4 0x4f11bd in main \/tmp\/jasper-version-1.900.3\/src\/appl\/imginfo.c:179:16\r\n    #5 0x7f78c27ba61f in __libc_start_main \/var\/tmp\/portage\/sys-libs\/glibc-2.22-r4\/work\/glibc-2.22\/csu\/libc-start.c:289\r\n    #6 0x418bc8 in _start (\/tmp\/jasper-version-1.900.3\/src\/appl\/.libs\/imginfo+0x418bc8)\r\n\r\nAddressSanitizer can not provide additional info.\r\nSUMMARY: AddressSanitizer: FPE \/tmp\/jasper-version-1.900.3\/src\/libjasper\/jpc\/jpc_dec.c:1196:18 in jpc_dec_process_siz\r\n==24077==ABORTING\r\n<\/font><\/pre>\n<p><strong>Affected version:<\/strong><br \/>\n1.900.1 and 1.900.3<\/p>\n<p><strong>Fixed version:<\/strong><br \/>\n1.900.4<\/p>\n<p><strong>Commit fix:<\/strong><br \/>\n<a href=\"https:\/\/github.com\/mdadams\/jasper\/commit\/d8c2604cd438c41ec72aff52c16ebd8183068020\">https:\/\/github.com\/mdadams\/jasper\/commit\/d8c2604cd438c41ec72aff52c16ebd8183068020<\/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-2016-8691<br \/>\nCVE-2016-8692<\/p>\n<p><strong>Timeline:<\/strong><br \/>\n2016-08-15: bug discovered<br \/>\n2016-08-23: requested a feedback on oss-security<br \/>\n2016-10-13: bug reported to upstream<br \/>\n2016-10-15: upstream released a patch<br \/>\n2016-10-15: upstream released 1.900.4<br \/>\n2016-10-16: blog post about the issue<br \/>\n2016-10-16: 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>.<\/p>\n<p><strong>Permalink:<\/strong><\/p>\n<blockquote data-secret=\"NIaD6DcD4H\" class=\"wp-embedded-content\"><p><a href=\"http:\/\/blogs.gentoo.org\/ago\/2016\/10\/16\/jasper-two-divide-by-zero-in-jpc_dec_process_siz-jpc_dec-c\/\">jasper: two divide-by-zero in jpc_dec_process_siz (jpc_dec.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\/2016\/10\/16\/jasper-two-divide-by-zero-in-jpc_dec_process_siz-jpc_dec-c\/embed\/#?secret=NIaD6DcD4H\" data-secret=\"NIaD6DcD4H\" width=\"600\" height=\"338\" title=\"&#8220;jasper: two divide-by-zero in jpc_dec_process_siz (jpc_dec.c)&#8221; &#8212; agostino&#039;s blog\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>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. A fuzzing revelaled two divide-by-zero in jpc_dec_process_siz Since jasper seems to be dead for years, I first posted &hellip; <a href=\"https:\/\/blogs.gentoo.org\/ago\/2016\/10\/16\/jasper-two-divide-by-zero-in-jpc_dec_process_siz-jpc_dec-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-bH","_links":{"self":[{"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/posts\/725"}],"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=725"}],"version-history":[{"count":3,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/posts\/725\/revisions"}],"predecessor-version":[{"id":744,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/posts\/725\/revisions\/744"}],"wp:attachment":[{"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/media?parent=725"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/categories?post=725"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/tags?post=725"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}