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[Bug 1342312] Re: ghostscript hangs reading certain pdfs

To: desktop-packages@xxxxxxxxxxxxxxxxxxx
From: Rolf Leggewie <1342312@xxxxxxxxxxxxxxxxxx>
Date: Wed, 18 Mar 2015 08:52:01 -0000
Reply-to: Bug 1342312 <1342312@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Here is the backported fix for trusty.  BIR tested.

** Patch added: "debdiff for trusty"
   https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/1342312/+attachment/4348842/+files/LP1342312_trusty.patch

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https://bugs.launchpad.net/bugs/1342312

Title:
  ghostscript hangs reading certain pdfs

Status in ghostscript package in Ubuntu:
  Fix Released
Status in ghostscript source package in Trusty:
  Confirmed

Bug description:
  On a few pdfs, gs hangs and uses 100% cpu forever.

  This could be used as a denial of service through imagemagick which
  uses ghostscript as a delegate, and commonly used in php etc... which
  is how I found the issue.

  The packages from utopic (9.14~dfsg-0ubuntu3) processes these pdfs
  correctly.

  To reproduce:
  gs WaddellAndReedJCL0814ThirdHProvSE.pdf

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ghostscript 9.10~dfsg-0ubuntu10.2
  ProcVersionSignature: Ubuntu 3.13.0-30.55-generic 3.13.11.2
  Uname: Linux 3.13.0-30-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  CupsErrorLog:
   
  CurrentDesktop: Unity
  Date: Tue Jul 15 14:34:26 2014
  InstallationDate: Installed on 2014-04-20 (86 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  Lpstat:
   device for Bizhub7222: socket://10.0.0.201:9100
   device for HP-Photosmart-6520-series: dnssd://Photosmart%206520%20series%20%5B1B47AD%5D._ipp._tcp.local/
  MachineType: ASUSTeK COMPUTER INC. UX32VD
  Papersize: letter
  PpdFiles:
   HP-Photosmart-6520-series: HP Photosmart 6520 Series, hpcups 3.14.3
   Bizhub7222: HP LaserJet 5L - CUPS+Gutenprint v5.2.10-pre2
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-30-generic root=UUID=2f256b0b-ee87-463a-af04-e892e0be9192 ro quiet splash pcie_aspm=force drm.vblankoffdelay=1 i915.semaphores=1
  SourcePackage: ghostscript
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/16/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX32VD.213
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX32VD
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX32VD.213:bd11/16/2012:svnASUSTeKCOMPUTERINC.:pnUX32VD:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX32VD:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX32VD
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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