[Bug 1806517] Re: Ghostscript segmentation fault onb PDF using -dFirstPage and -dLastPage
Launchpad has imported 7 comments from the remote bug at http://bugs.ghostscript.com/show_bug.cgi?id=700315. If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. On 2018-12-03T16:49:41+00:00 Bheeshmar wrote: We use ImageMagick to extract a the first page of a PDF as a thumbnail and recently started getting exceptions with some PDFs. Traced it to the call that ImageMagick was making: gs -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=5 -dAlignToPixels=0 -dGridFitTT=2 '-sDEVICE=pngalpha' -dTextAlphaBits=4 -dGraphicsAlphaBits=4 '-r72x72' -dLastPage=1 -sOutputFile=1.png -f Bloomfire-Security_and_Redundancy.pdf When this is run with GS version 9.25, the thumbnail is extracted with no error. When this is run with GS version 9.26, I see "Segmentation fault: 11" I've attached a file that causes there error. Observed on both OSX and Ubuntu Linux. Reply at: https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/1806517/comments/1 On 2018-12-03T16:50:51+00:00 Bheeshmar wrote: Created attachment 16470 Output of run with -dDEBUG Reply at: https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/1806517/comments/2 On 2018-12-03T16:51:24+00:00 Bheeshmar wrote: Created attachment 16471 PDF example that causes the segfault Reply at: https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/1806517/comments/3 On 2018-12-04T00:47:14+00:00 Ken Sharp wrote: *** This bug has been marked as a duplicate of bug 699815 *** Reply at: https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/1806517/comments/4 On 2018-12-04T21:05:41+00:00 Ken Sharp wrote: *** Bug 700314 has been marked as a duplicate of this bug. *** Reply at: https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/1806517/comments/13 On 2018-12-04T21:10:10+00:00 Ken Sharp wrote: *** Bug 700313 has been marked as a duplicate of this bug. *** Reply at: https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/1806517/comments/14 On 2018-12-04T21:32:36+00:00 Ken Sharp wrote: Fixed in commit fae21f1668d2b44b18b84cf0923a1d5f3008a696 Reply at: https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/1806517/comments/15 ** Changed in: gs-gpl Status: Unknown => Fix Released ** Changed in: gs-gpl Importance: Unknown => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806517 Title: Ghostscript segmentation fault onb PDF using -dFirstPage and -dLastPage To manage notifications about this bug go to: https://bugs.launchpad.net/gs-gpl/+bug/1806517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806517] Re: Ghostscript segmentation fault onb PDF using -dFirstPage and -dLastPage
I have changed the upstream related bug which has been resolved (patch available) ** No longer affects: gs-gpl ** Bug watch added: Ghostscript (AFPL) Bugzilla #700315 http://bugs.ghostscript.com/show_bug.cgi?id=700315 ** Also affects: gs-gpl via http://bugs.ghostscript.com/show_bug.cgi?id=700315 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806517 Title: Ghostscript segmentation fault onb PDF using -dFirstPage and -dLastPage To manage notifications about this bug go to: https://bugs.launchpad.net/gs-gpl/+bug/1806517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806517] Re: Ghostscript segmentation fault onb PDF using -dFirstPage and -dLastPage
** Changed in: gs-gpl Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806517 Title: Ghostscript segmentation fault onb PDF using -dFirstPage and -dLastPage To manage notifications about this bug go to: https://bugs.launchpad.net/gs-gpl/+bug/1806517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806517] Re: Ghostscript segmentation fault onb PDF using -dFirstPage and -dLastPage
I can confirm this problem on Ubuntu 16.04 and ghostscript 9.26~dfsg+0-0ubuntu0.16.04.1: $ gs --version 9.26 $ convert "confidential.pdf[0]" confidential.png convert: FailedToExecuteCommand `"gs" -q -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=5 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pngalpha" -dTextAlphaBits=4 -dGraphicsAlphaBits=4 "-r72x72" -dFirstPage=1 -dLastPage=1 "-sOutputFile=/tmp/magick-12412a591aAW0c1rp%d" "-f/tmp/magick-12412pbD9WU9tgyvz" "-f/tmp/magick-12412_OoIhBmXubzJ"' (-1) @ error/delegate.c/ExternalDelegateCommand/461. convert: no images defined `confidential.png' @ error/convert.c/ConvertImageCommand/3210. The problem doesn't happen with ghostscript 9.25~dfsg+1-0ubuntu0.16.04.3: $ dpkg --install libgs9_9.25~dfsg+1-0ubuntu0.16.04.3_amd64.deb libgs9-common_9.25~dfsg+1-0ubuntu0.16.04.3_all.deb ghostscript_9.25~dfsg+1-0ubuntu0.16.04.3_amd64.deb ghostscript-x_9.25~dfsg+1-0ubuntu0.16.04.3_amd64.deb $ gs --version 9.25 $ convert "confidential.pdf[0]" confidential.png $ identify confidential.png confidential.png PNG 595x842 595x842+0+0 8-bit sRGB 22.5KB 0.000u 0:00.000 Not every PDF is affected by this problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806517 Title: Ghostscript segmentation fault onb PDF using -dFirstPage and -dLastPage To manage notifications about this bug go to: https://bugs.launchpad.net/gs-gpl/+bug/1806517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806517] Re: Ghostscript segmentation fault onb PDF using -dFirstPage and -dLastPage
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: ghostscript (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806517 Title: Ghostscript segmentation fault onb PDF using -dFirstPage and -dLastPage To manage notifications about this bug go to: https://bugs.launchpad.net/gs-gpl/+bug/1806517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806517] Re: Ghostscript segmentation fault onb PDF using -dFirstPage and -dLastPage
Subscribing Ubuntu Security Team as this is a regression caused by the recent security updates. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806517 Title: Ghostscript segmentation fault onb PDF using -dFirstPage and -dLastPage To manage notifications about this bug go to: https://bugs.launchpad.net/gs-gpl/+bug/1806517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806517] Re: Ghostscript segmentation fault onb PDF using -dFirstPage and -dLastPage
NOTE: This won't survive an apt upgrade and may raise security issues (gs has been update to 9.26 because of security issues, see http://changelogs.ubuntu.com/changelogs/pool/main/g/ghostscript/ghostscript_9.26~dfsg+0-0ubuntu0.18.04.1/changelog) As a temporary workaround one can downgrade. For xenial (ubuntu 16.04): # apt install libgs9-common=9.18~dfsg~0-0ubuntu2 libgs9=9.18~dfsg~0-0ubuntu2 ghostscript=9.18~dfsg~0-0ubuntu2 For bionic (ubuntu 18.04): # apt install libgs9-common=9.22~dfsg+1-0ubuntu1 libgs9=9.22~dfsg+1-0ubuntu1 ghostscript=9.22~dfsg+1-0ubuntu1 For cosmic (ubuntu 18.10): # apt install libgs9-common=9.25~dfsg+1-0ubuntu1 libgs9=9.25~dfsg+1-0ubuntu1 ghostscript=9.25~dfsg+1-0ubuntu1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806517 Title: Ghostscript segmentation fault onb PDF using -dFirstPage and -dLastPage To manage notifications about this bug go to: https://bugs.launchpad.net/gs-gpl/+bug/1806517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1806517] Re: Ghostscript segmentation fault onb PDF using -dFirstPage and -dLastPage
Launchpad has imported 1 comments from the remote bug at http://bugs.ghostscript.com/show_bug.cgi?id=700314. If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. On 2018-12-03T16:48:43+00:00 Bheeshmar wrote: Created attachment 16469 PDF which causes segfault in 9.26 We use ImageMagick to extract a the first page of a PDF as a thumbnail and recently started getting exceptions with some PDFs. Traced it to the call that ImageMagick was making: gs -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=5 -dAlignToPixels=0 -dGridFitTT=2 '-sDEVICE=pngalpha' -dTextAlphaBits=4 -dGraphicsAlphaBits=4 '-r72x72' -dLastPage=1 -sOutputFile=1.png -f Bloomfire-Security_and_Redundancy.pdf When this is run with GS version 9.25, the thumbnail is extracted with no error. When this is run with GS version 9.26, I see "Segmentation fault: 11" I've attached a file that causes there error. Observed on both OSX and Ubuntu Linux. Here is the output from running the same command with -dDEBUG: START 0 1455888 160729 1310728 29572 true 587 3 <0> END PROCS 0 1504736 208805 1330928 35516 true 709 3 <0> gs_std_e.ps 0 1524936 219150 1330928 38012 true 717 3 <0> gs_il1_e.ps 0 1524936 225026 1330928 38012 true 718 3 <0> END FONTDIR/ENCS 0 1524936 225302 1330928 38012 true 720 3 <0> END DEVS 0 1601672 291074 1330928 38012 true 724 3 <0> END STATD 0 1601672 305936 1330928 40908 true 729 3 <0> END GS_FONTS 0 1662272 362977 1330928 40908 true 777 3 <0> END BASIC COLOR 0 1662272 370569 1330928 40908 true 797 3 <0> END IMAGE 0 1682472 383205 1330928 40908 true 802 3 <0> gs_btokn.ps 0 1682472 390509 1330928 40908 true 806 3 <1> gs_dps1.ps 0 1702672 397919 1330928 40908 true 808 3 <1> gs_dps2.ps 0 1731320 419098 1330928 40908 true 809 3 <1> gs_agl.ps 0 2465232 1119600 1330928 40908 true 811 3 <1> gs_type1.ps 0 2465232 1126479 1330928 41186 true 819 3 <1> gs_lev2.ps 0 2554480 1192135 1436088 146788 true 825 3 <1> BEGIN RESOURCES 0 2554480 1194793 1436088 146788 true 825 4 <2> END CATEGORY 0 2554480 1198912 1436088 147084 true 826 5 <2> END GENERIC 0 2564516 1219750 1436088 147084 true 828 4 <2> END FIXED 0 2584716 1237312 1436088 147084 true 828 4 <2> END MISC 0 2604916 1252528 1436088 147084 true 828 4 <2> END ENCODING 0 2734596 1382958 1436088 150722 true 828 4 <2> gs_resmp.ps 10 2774996 1412399 1436088 152568 true 832 3 <2> gs_res.ps 10 2774996 1410261 1436088 152568 true 832 3 <1> gs_typ42.ps 10 2774996 1411595 1436088 152568 true 835 3 <1> gs_cidfn.ps 10 2815396 1446804 1436088 152568 true 843 3 <1> gs_cidcm.ps 10 2835596 1472845 1436088 152568 true 843 3 <1> gs_fntem.ps 10 288 1520727 1436088 152568 true 845 3 <1> gs_cidtt.ps 10 2904644 1540784 1436088 152568 true 845 3 <1> gs_cidfm.ps 10 2924844 1554924 1436088 152568 true 845 3 <1> gs_cmap.ps 10 2945044 1574218 1436088 152568 true 850 3 <1> gs_setpd.ps 10 2965244 1599534 1436088 152568 true 850 3 <1> gs_fapi.ps 10 3005644 1632658 1436088 152568 true 848 3 <1> gs_typ32.ps 10 3005644 1635417 1436088 152568 true 846 3 <1> gs_frsd.ps 10 3005644 1638227 1436088 152568 true 846 3 <1> gs_ll3.ps 10 3167244 1792468 1436088 152816 true 847 3 <1> gs_icc.ps 10 3167244 1798386 1436088 152816 true 848 3 <1> gs_mex_e.ps 10 3187444 1804404 1436088 152816 true 848 3 <1> gs_mro_e.ps 10 3187444 1805591 1436088 152816 true 848 3 <1> gs_pdf_e.ps 10 3187444 1806824 1436088 152816 true 848 3 <1> gs_wan_e.ps 10 3187444 1808074 1436088 152816 true 848 3 <1> pdf_ops.ps 10 3268244 1891640 1436088 152816 true 848 3 <1> gs_l2img.ps 10 3268244 1895932 1436088 152816 true 851 3 <1> pdf_rbld.ps 10 3288444 1911241 1436088 152816 true 864 3 <1> pdf_base.ps 10 3357492 1979620 1436088 152816 true 1072 4 <1> pdf_draw.ps 10 3579692 2190507 1436088 152816 true 1072 4 <1> pdf_font.ps 10 3706100 2304609 1436088 153584 true 1073 4 <1> pdf_main.ps 20 3827300 2437197 1436088 153584 true 1041 4 <1> pdf_sec.ps 20 3867700 2462379 1436088 153584 true 1041 4 <1> gs_cff.ps 20 3867700 2470252 1436088 153584 true 1044 4 <1> gs_mgl_e.ps 20 3867700 2472053 1436088 153584 true 1044 4 <1> Extend MacRomanEncodingForTrueType for TrueType: insert /greaterequal @ 179 Extend MacRomanEncodingForTrueType for TrueType: insert /product @ 184 Extend MacRomanEncodingForTrueType for TrueType: insert /infinity @ 176 Extend MacRomanEncodingForTrueType for TrueType: insert /Omega @ 189 Extend MacRomanEncodingForTrueType for TrueType: insert /notequal @ 173 Extend MacRomanEncodingForTrueType for TrueType: insert /Delta @ 198 Extend MacRomanEncodingForTrueType for TrueType: insert /radical @ 195 Extend MacRomanEncodingForTrueType for TrueType: insert /lozenge @ 215 Extend MacRomanEncodingForTrueType for TrueType: cannot insert /Euro @ 219 used for /currency Extend MacRomanEncodingForTrueType for
