Testing on Xenial --- Files)
$ wget -O ppd-with-pdf-support.ppd 'http://www.openprinting.org/ppd-o-matic.php?driver=hl7x0&printer =Brother-HL-1020&show=1' $ wget -O dummy.pdf https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf Test 0) Before updating ghostscript or cups-filters $ dpkg -s cups-filters ghostscript | grep ^Version: Version: 1.8.3-2ubuntu3.4 Version: 9.26~dfsg+0-0ubuntu0.16.04.8 $ foomatic-rip -v --ppd ppd-with-pdf-support.ppd dummy.pdf ... Filetype: PDF File contains 1 pages Starting renderer with command: <...> ... Test 1) After updating ghostscript (not cups-filters) $ dpkg -s cups-filters ghostscript | grep ^Version: Version: 1.8.3-2ubuntu3.4 Version: 9.26~dfsg+0-0ubuntu0.16.04.11 $ foomatic-rip -v --ppd ppd-with-pdf-support.ppd dummy.pdf ... Filetype: PDF GPL Ghostscript 9.26: Unrecoverable error, exit code 1 Process is dying with "Unable to determine number of pages, page count: -1 ", exit stat 3 ... Test 2) Checking before updating ghostscript with test package (thus cups-filters too) Checking update of cups-filters with apt-get and apt: $ sudo apt-get install --dry-run ghostscript ... The following packages will be upgraded: cups-filters cups-filters-core-drivers ghostscript libgs9 libgs9-common ... Inst cups-filters [1.8.3-2ubuntu3.4] (1.8.3-2ubuntu3.5 Ubuntu:16.04/xenial-updates, Ubuntu:16.04/xenial-security [amd64]) Inst ghostscript [9.26~dfsg+0-0ubuntu0.16.04.11] (9.26~dfsg+0-0ubuntu0.16.04.11+test20191510b1 mfo-sf246942:16.04/xenial [amd64]) [] ... $ sudo apt install --dry-run ghostscript ... The following packages will be upgraded: cups-filters cups-filters-core-drivers ghostscript libgs9 libgs9-common ... Inst cups-filters [1.8.3-2ubuntu3.4] (1.8.3-2ubuntu3.5 Ubuntu:16.04/xenial-updates, Ubuntu:16.04/xenial-security [amd64]) Inst ghostscript [9.26~dfsg+0-0ubuntu0.16.04.11] (9.26~dfsg+0-0ubuntu0.16.04.11+test20191510b1 mfo-sf246942:16.04/xenial [amd64]) [] ... Test 3) After updating ghostscript with test package (thus cups-filters too) $ dpkg -s cups-filters ghostscript | grep ^Version: Version: 1.8.3-2ubuntu3.5 Version: 9.26~dfsg+0-0ubuntu0.16.04.11+test20191510b1 $ foomatic-rip -v --ppd ppd-with-pdf-support.ppd dummy.pdf ... Filetype: PDF File contains 1 pages Starting renderer with command: <...> ... -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to ghostscript in Ubuntu. https://bugs.launchpad.net/bugs/1848210 Title: ghostscript: ensure update of cups-filter Status in ghostscript package in Ubuntu: Invalid Status in ghostscript source package in Xenial: In Progress Status in ghostscript source package in Bionic: In Progress Bug description: [Impact] * After an update of ghostscript but not cups-filters (which is possible, including via Landscape tooling) users may hit errors printing PDF files (LP#1828401). * Landscape allows packages updates to USN-only thus ghostscript is updated for CVE-2019-3839-1 and -2 (version 9.26~dfsg+0-0ubuntu0.18.04.9 and 16.04.9) which may break printing PDF files on cups-filters. * So, to ensure that ghostscript and cups-filters are both updated, add a versioned 'Breaks:' relationship to ghostscript for older cups-filters versions which are not yet fixed. * A versioned 'Depends:' relationship is not possible as ghostscript doesn't depend on cups-filters, thus it's possible to have ghostscript installed without cups-filters at all. [Test Case] * Install cups-filters version without fix for LP#1828401: 1.20.2-0ubuntu3 in Bionic, and 1.8.3-2ubuntu3.4 in Xenial. * Update ghostscript to/later than fix for CVE-2019-3839-1/-2 9.26~dfsg+0-0ubuntu0.18.04.9 in Bionic / .16.04.9 in Xenial. * Notice it does _not_ update cups-filters to version with fix: 1.20.2-0ubuntu3.1 in Bionic, and 1.8.3-2ubuntu3.5 in Xenial. * $ wget -O ppd-with-pdf-support.ppd \ 'http://www.openprinting.org/ppd-o-matic.php?driver=hl7x0&printer=Brother-HL-1020&show=1' * $ wget -O dummy.pdf \ https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf * $ foomatic-rip -v --ppd ppd-with-pdf-support.ppd dummy.pdf ... Filetype: PDF GPL Ghostscript 9.26: Unrecoverable error, exit code 1 Process is dying with "Unable to determine number of pages, page count: -1 ", exit stat 3 ... * Note it's broken. * Install ghostscript (test) packages with the relationships 'Breaks: cups-filters (<< 1.20.2-0ubuntu3.1)' in Bionic or 'Breaks: ..., cups-filters (<< 1.8.3-2ubuntu3.5)' in Xenial. * Note it _does_ update cups-filters to version with fix. * $ foomatic-rip -v --ppd ppd-with-pdf-support.ppd dummy.pdf ... Filetype: PDF File contains 1 pages Starting renderer with command: <...> ... * Note it's now working. [Regression Potential] * Low. This only causes an update to cups-filters to a version that fixes an already identified/resolved problem (LP#1828401), which is available in bionic- & xenial-updates since May 2019. 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