{"id":689,"date":"2016-10-16T12:07:23","date_gmt":"2016-10-16T10:07:23","guid":{"rendered":"http:\/\/blogs.gentoo.org\/ago\/?p=689"},"modified":"2016-10-17T09:52:47","modified_gmt":"2016-10-17T07:52:47","slug":"jasper-two-null-pointer-dereference-in-bmp_getdata-bmp_dec-c","status":"publish","type":"post","link":"https:\/\/blogs.gentoo.org\/ago\/2016\/10\/16\/jasper-two-null-pointer-dereference-in-bmp_getdata-bmp_dec-c\/","title":{"rendered":"jasper: two NULL pointer dereference in bmp_getdata (bmp_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 NULL pointer access in bmp_getdata.<\/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\n==26929==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7f8fc7fd53b5 bp 0x7ffcdf755110 sp 0x7ffcdf754de0 T0)                              \r\n    #0 0x7f8fc7fd53b4 in bmp_getdata \/tmp\/jasper-version-1.900.3\/src\/libjasper\/bmp\/bmp_dec.c:385:5                                                               \r\n    #1 0x7f8fc7fd53b4 in bmp_decode \/tmp\/jasper-version-1.900.3\/src\/libjasper\/bmp\/bmp_dec.c:190                                                                  \r\n    #2 0x7f8fc7fa1a9a in jas_image_decode \/tmp\/jasper-version-1.900.3\/src\/libjasper\/base\/jas_image.c:372:16                                                      \r\n    #3 0x4f11bd in main \/tmp\/jasper-version-1.900.3\/src\/appl\/imginfo.c:179:16                                                                                    \r\n    #4 0x7f8fc70b961f in __libc_start_main \/var\/tmp\/portage\/sys-libs\/glibc-2.22-r4\/work\/glibc-2.22\/csu\/libc-start.c:289                                          \r\n    #5 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: SEGV \/tmp\/jasper-version-1.900.3\/src\/libjasper\/bmp\/bmp_dec.c:385:5 in bmp_getdata                                                     \r\n==26929==ABORTING\r\n\r\n\r\n# imginfo -f $FILE\r\n==15555==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7f02a9c081ee bp 0x7ffd1e22e110 sp 0x7ffd1e22dde0 T0)\r\n    #0 0x7f02a9c081ed in bmp_getdata \/tmp\/jasper-version-1.900.3\/src\/libjasper\/bmp\/bmp_dec.c:383:5\r\n    #1 0x7f02a9c081ed in bmp_decode \/tmp\/jasper-version-1.900.3\/src\/libjasper\/bmp\/bmp_dec.c:190\r\n    #2 0x7f02a9bd4a9a in jas_image_decode \/tmp\/jasper-version-1.900.3\/src\/libjasper\/base\/jas_image.c:372:16\r\n    #3 0x4f11bd in main \/tmp\/jasper-version-1.900.3\/src\/appl\/imginfo.c:179:16\r\n    #4 0x7f02a8cec61f in __libc_start_main \/var\/tmp\/portage\/sys-libs\/glibc-2.22-r4\/work\/glibc-2.22\/csu\/libc-start.c:289\r\n    #5 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: SEGV \/tmp\/jasper-version-1.900.3\/src\/libjasper\/bmp\/bmp_dec.c:383:5 in bmp_getdata\r\n==15555==ABORTING\r\n<\/font><\/pre>\n<p><strong>Affected version:<\/strong><br \/>\n1.900.1, 1.900.3 and 1.900.4<\/p>\n<p><strong>Fixed version:<\/strong><br \/>\n1.900.5<\/p>\n<p><strong>Commit fix:<\/strong><br \/>\n<a href=\"https:\/\/github.com\/mdadams\/jasper\/commit\/8f62b4761711d036fd8964df256b938c809b7fca\">https:\/\/github.com\/mdadams\/jasper\/commit\/8f62b4761711d036fd8964df256b938c809b7fca<\/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-2016-8690<\/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 \/>\n2016-10-16: upstream released a patch<br \/>\n2016-10-16: blog post about the issue<br \/>\n2016-10-16: CVE Assigned<br \/>\n2016-10-16: upstream released 1.900.5<\/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=\"3EM4l6z1o2\" class=\"wp-embedded-content\"><p><a href=\"http:\/\/blogs.gentoo.org\/ago\/2016\/10\/16\/jasper-two-null-pointer-dereference-in-bmp_getdata-bmp_dec-c\/\">jasper: two NULL pointer dereference in bmp_getdata (bmp_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-null-pointer-dereference-in-bmp_getdata-bmp_dec-c\/embed\/#?secret=3EM4l6z1o2\" data-secret=\"3EM4l6z1o2\" width=\"600\" height=\"338\" title=\"&#8220;jasper: two NULL pointer dereference in bmp_getdata (bmp_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 NULL pointer access in bmp_getdata. Since jasper seems to be dead for years, I &hellip; <a href=\"https:\/\/blogs.gentoo.org\/ago\/2016\/10\/16\/jasper-two-null-pointer-dereference-in-bmp_getdata-bmp_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-b7","_links":{"self":[{"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/posts\/689"}],"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=689"}],"version-history":[{"count":7,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/posts\/689\/revisions"}],"predecessor-version":[{"id":749,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/posts\/689\/revisions\/749"}],"wp:attachment":[{"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/media?parent=689"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/categories?post=689"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.gentoo.org\/ago\/wp-json\/wp\/v2\/tags?post=689"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}