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Changes in CUPS v2.3.6

  • CVE-2022-26691: An incorrect comparison in local admin authentication.

Changes in CUPS v2.3.5

  • The automated test suite can now be activated using make test for consistency with other projects and CI environments - the old make check continues to work as well, and the previous test server behavior can be accessed by running make testserver.
  • ippeveprinter now supports multiple icons and strings files.
  • ippeveprinter now uses the system's FQDN with Avahi.
  • ippeveprinter now supports Get-Printer-Attributes on "/".
  • ippeveprinter now uses a deterministic "printer-uuid" value.
  • ippeveprinter now uses system sounds on macOS for Identify-Printer.
  • Updated ippfind to look for files in "~/Desktop" on Windows.
  • Updated ippfind to honor SKIP-XXX directives with PAUSE.
  • Updated IPP Everywhere support to work around printers that only advertise color raster support but really also support grayscale (OpenPrinting #1)
  • ipptool now supports DNS-SD URIs like ipps://My%20Printer._ipps._tcp.local (OpenPrinting #5)
  • ipptool now supports monitoring the printer state while submitting a job with the MONITOR-PRINTER-STATE directive (OpenPrinting #153)
  • ipptool now supports testing for unique values with the WITH-DISTINCT-VALUES predicate (OpenPrinting #153)
  • ipptool now supports retrying requests on a server-error-busy status code (OpenPrinting #153)
  • ipptool now supports value-tag(MAX) and value-tag(MIN:MAX) for the OF-TYPE predicate (OpenPrinting #153)
  • The scheduler now allows root backends to have world read permissions but not world execute permissions (OpenPrinting #21)
  • Failures to bind IPv6 listener sockets no longer cause errors if IPv6 is disabled on the host (OpenPrinting #25)
  • The SNMP backend now supports the HP and Ricoh vendor MIBs (OpenPrinting #28)
  • The scheduler no longer includes a timestamp in files it writes (OpenPrinting #29)
  • IPP Everywhere PPDs could have an "unknown" default InputSlot (OpenPrinting #44)
  • The httpAddrListen function now uses a listen backlog of 128.
  • The PPD functions now treat boolean values as case-insensitive (OpenPrinting #106)
  • Temporary queue names no longer end with an underscore (OpenPrinting #110)
  • Added USB quirks (Issue #5789, #5766, #5823, #5831, #5838, #5843, #5867)
  • Fixed IPP Everywhere v1.1 conformance issues in ippeveprinter.
  • Fixed DNS-SD name collision support in ippeveprinter.
  • Fixed compiler and code analyzer warnings.
  • Fixed TLS support on Windows.
  • Fixed ippfind sub-type searches with Avahi.
  • Fixed the default hostname used by ippeveprinter on macOS.
  • Fixed resolution of local IPP-USB printers with Avahi.
  • Fixed coverity issues (OpenPrinting #2)
  • Fixed httpAddrConnect issues (OpenPrinting #3)
  • Fixed web interface device URI issue (OpenPrinting #4)
  • Fixed lp/lpr "printer/class not found" error reporting (OpenPrinting #6)
  • Fixed a memory leak in the scheduler (OpenPrinting #12)
  • Fixed a potential integer overflow in the PPD hashing code (OpenPrinting #13)
  • Fixed output-bin and print-quality handling issues (OpenPrinting #18)
  • Fixed PPD options getting mapped to odd IPP values like "tray---4" (OpenPrinting #23)
  • Fixed remote access to the cupsd.conf and log files (OpenPrinting #24)
  • Fixed a logging regression caused by a previous change for Issue #5604 (OpenPrinting #25)
  • Fixed the "uri-security-supported" value from the scheduler (OpenPrinting #42)
  • Fixed IPP backend crash bug with "printer-alert" values (OpenPrinting #43)
  • Fixed default options that incorrectly use the "custom" prefix (OpenPrinting #48)
  • Fixed a memory leak when resolving DNS-SD URIs (OpenPrinting #49)
  • Fixed cupsManualCopies values in IPP Everywhere PPDs (Issue #5807)
  • Fixed duplicate ColorModel entries for AirPrint printers (Issue 59)
  • Fixed crash bug in ppdOpen (OpenPrinting #64, OpenPrinting #78)
  • Fixed regression in snprintf emulation function (OpenPrinting #67)
  • Fixed reporting of printer instances when enumerating and when no options are set for the main instance (OpenPrinting #71)
  • Fixed segfault in help.cgi when searching in man pages (OpenPrinting #81)
  • Fixed a bug in ipptool that caused the reuse of request IDs when repeating a test (OpenPrinting #153)
  • Root certificates were incorrectly stored in "~/.cups/ssl".
  • Fixed a PPD memory leak caused by emulator definitions (OpenPrinting #124)
  • Fixed a DISPLAY bug in ipptool (OpenPrinting #139)
  • httpReconnect2 did not reset the socket file descriptor when the TLS negotiation failed (Issue #5907)
  • httpUpdate did not reset the socket file descriptor when the TLS negotiation failed (Apple #5915)
  • The ippeveprinter tool now automatically uses an available port.
  • The IPP backend now retries Validate-Job requests (OpenPrinting #132)
  • Removed support for the (long deprecated and unused) KeepAliveTimeout directive in cupsd.conf (Issue #5733)
  • Fixed @IF(name) handling in cupsd.conf (Issue #5918)
  • The scheduler now supports the "everywhere" model directly (Issue #5919)
  • Fixed documentation and added examples for CUPS' limited CGI support (Issue #5940)
  • Fixed the lpc command prompt (Issue #5946)
  • Fixed job-pages-per-set value for duplex print jobs.

Changes in CUPS v2.3.4

  • CVE-2020-10001: Fixed a buffer (read) overflow in the ippReadIO function.

Changes in CUPS v2.3.3

  • CVE-2020-3898: The ppdOpen function did not handle invalid UI constraint. ppdcSource::get_resolution function did not handle invalid resolution strings.
  • CVE-2019-8842: The ippReadIO function may under-read an extension field.
  • Fixed WARNING_OPTIONS support for GCC 9.x

Changes in CUPS v2.3.2

  • Localization updates.

Changes in CUPS v2.3.1

  • Documentation updates (Issue #5661, #5674, #5682)
  • CVE-2019-2228: The ippSetValuetag function did not validate the default language value.
  • Fixed a crash bug in the web interface (Issue #5621)
  • The PPD cache code now looks up page sizes using their dimensions (Issue #5633)
  • PPD files containing "custom" option keywords did not work (Issue #5639)
  • Added a workaround for the scheduler's systemd support (Issue #5640)
  • On Windows, TLS certificates generated on February 29 would likely fail (Issue #5643)
  • Added a DigestOptions directive for the client.conf file to control whether MD5-based Digest authentication is allowed (Issue #5647)
  • Fixed a bug in the handling of printer resource files (Issue #5652)
  • The libusb-based USB backend now reports an error when the distribution permissions are wrong (Issue #5658)
  • Added paint can labels to Dymo driver (Issue #5662)
  • The ippeveprinter program now supports authentication (Issue #5665)
  • The ippeveprinter program now advertises DNS-SD services on the correct interfaces, and provides a way to turn them off (Issue #5666)
  • The --with-dbusdir option was ignored by the configure script (Issue #5671)
  • Sandboxed applications were not able to get the default printer (Issue #5676)
  • Log file access controls were not preserved by cupsctl (Issue #5677)
  • Default printers set with lpoptions did not work in all cases (Issue #5681, Issue #5683, Issue #5684)
  • Fixed an error in the jobs web interface template (Issue #5694)
  • Fixed an off-by-one error in ippEnumString (Issue #5695)
  • Fixed some new compiler warnings (Issue #5700)
  • Fixed a few issues with the Apple Raster support (rdar://55301114)
  • The IPP backend did not detect all cases where a job should be retried using a raster format (rdar://56021091)
  • Fixed spelling of "fold-accordion".
  • Fixed the default common name for TLS certificates used by ippeveprinter.
  • Fixed the option names used for IPP Everywhere finishing options.
  • Added support for the second roll of the DYMO Twin/DUO label printers.

Changes in CUPS v2.3.0

  • CVE-2019-8696 and CVE-2019-8675: Fixed SNMP buffer overflows (rdar://51685251)
  • Added a GPL2/LGPL2 exception to the new CUPS license terms.
  • Documentation updates (Issue #5604)
  • Localization updates (Issue #5637)
  • Fixed a bug in the scheduler job cleanup code (Issue #5588)
  • Fixed builds when there is no TLS library (Issue #5590)
  • Eliminated some new GCC compiler warnings (Issue #5591)
  • Removed dead code from the scheduler (Issue #5593)
  • "make" failed with GZIP options (Issue #5595)
  • Fixed potential excess logging from the scheduler when removing job files (Issue #5597)
  • Fixed a NULL pointer dereference bug in httpGetSubField2 (Issue #5598)
  • Added FIPS-140 workarounds for GNU TLS (Issue #5601, Issue #5622)
  • The scheduler no longer provides a default value for the description (Issue #5603)
  • The scheduler now logs jobs held for authentication using the error level so it is clear what happened (Issue #5604)
  • The lpadmin command did not always update the PPD file for changes to the cupsIPPSupplies and cupsSNMPSupplies keywords (Issue #5610)
  • The scheduler now uses both the group's membership list as well as the various OS-specific membership functions to determine whether a user belongs to a named group (Issue #5613)
  • Added USB quirks rule for HP LaserJet 1015 (Issue #5617)
  • Fixed some PPD parser issues (Issue #5623, Issue #5624)
  • The IPP parser no longer allows invalid member attributes in collections (Issue #5630)
  • The configure script now treats the "wheel" group as a potential system group (Issue #5638)
  • Fixed a USB printing issue on macOS (rdar://31433931)
  • Fixed IPP buffer overflow (rdar://50035411)
  • Fixed memory disclosure issue in the scheduler (rdar://51373853)
  • Fixed DoS issues in the scheduler (rdar://51373929)
  • Fixed an issue with unsupported "sides" values in the IPP backend (rdar://51775322)
  • The scheduler would restart continuously when idle and printers were not shared (rdar://52561199)
  • Fixed an issue with EXPECT !name WITH-VALUE ... tests.
  • Fixed a command ordering issue in the Zebra ZPL driver.
  • Fixed a memory leak in ppdOpen.

Changes in CUPS v2.3rc1

  • The cups-config script no longer adds extra libraries when linking against shared libraries (Issue #5261)
  • The supplied example print documents have been optimized for size (Issue #5529)
  • The cupsctl command now prevents setting "cups-files.conf" directives (Issue #5530)
  • The "forbidden" message in the web interface is now explained (Issue #5547)
  • The footer in the web interface covered some content on small displays (Issue #5574)
  • The libusb-based USB backend now enforces read limits, improving print speed in many cases (Issue #5583)
  • The ippeveprinter command now looks for print commands in the "command" subdirectory.
  • The ipptool command now supports $date-current and $date-start variables to insert the current and starting date and time values, as well as ISO-8601 relative time values such as "PT30S" for 30 seconds in the future.

Changes in CUPS v2.3b8

  • Media size matching now uses a tolerance of 0.5mm (rdar://33822024)
  • The lpadmin command would hang with a bad PPD file (rdar://41495016)
  • Fixed a potential crash bug in cups-driverd (rdar://46625579)
  • Fixed a performance regression with large PPDs (rdar://47040759)
  • Fixed a memory reallocation bug in HTTP header value expansion (rdar://problem/50000749)
  • Timed out job submission now yields an error (Issue #5570)
  • Restored minimal support for the Emulators keyword in PPD files to allow old Samsung printer drivers to continue to work (Issue #5562)
  • The scheduler did not encode octetString values like "job-password" correctly for the print filters (Issue #5558)
  • The cupsCheckDestSupported function did not check octetString values correctly (Issue #5557)
  • Added support for UserAgentTokens directive in "client.conf" (Issue #5555)
  • Updated the systemd service file for cupsd (Issue #5551)
  • The ippValidateAttribute function did not catch all instances of invalid UTF-8 strings (Issue #5509)
  • Fixed an issue with the self-signed certificates generated by GNU TLS (Issue #5506)
  • Fixed a potential memory leak when reading at the end of a file (Issue #5473)
  • Fixed potential unaligned accesses in the string pool (Issue #5474)
  • Fixed a potential memory leak when loading a PPD file (Issue #5475)
  • Added a USB quirks rule for the Lexmark E120n (Issue #5478)
  • Updated the USB quirks rule for Zebra label printers (Issue #5395)
  • Fixed a compile error on Linux (Issue #5483)
  • The lpadmin command, web interface, and scheduler all queried an IPP Everywhere printer differently, resulting in different PPDs for the same printer (Issue #5484)
  • The web interface no longer provides access to the log files (Issue #5513)
  • Non-Kerberized printing to Windows via IPP was broken (Issue #5515)
  • Eliminated use of private headers and some deprecated macOS APIs (Issue #5516)
  • The scheduler no longer stops a printer if an error occurs when a job is canceled or aborted (Issue #5517)
  • Added a USB quirks rule for the DYMO 450 Turbo (Issue #5521)
  • Added a USB quirks rule for Xerox printers (Issue #5523)
  • The scheduler's self-signed certificate did not include all of the alternate names for the server when using GNU TLS (Issue #5525)
  • Fixed compiler warnings with newer versions of GCC (Issue #5532, Issue #5533)
  • Fixed some PPD caching and IPP Everywhere PPD accounting/password bugs (Issue #5535)
  • Fixed PreserveJobHistory bug with time values (Issue #5538)
  • The scheduler no longer advertises the HTTP methods it supports (Issue #5540)
  • Localization updates (Issue #5461, Issues #5471, Issue #5481, Issue #5486, Issue #5489, Issue #5491, Issue #5492, Issue #5493, Issue #5494, Issue #5495, Issue #5497, Issue #5499, Issue #5500, Issue #5501, Issue #5504)
  • The scheduler did not always idle exit as quickly as it could.
  • Added a new ippeveprinter command based on the old ippserver sample code.

Changes in CUPS v2.3b7

  • Fixed some build failures (Issue #5451, Issue #5463)
  • Running ppdmerge with the same input and output filenames did not work as advertised (Issue #5455)

Changes in CUPS v2.3b6

  • Localization update (Issue #5339, Issue #5348, Issue #5362, Issue #5408, Issue #5410)
  • Documentation updates (Issue #5369, Issue #5402, Issue #5403, Issue #5404)
  • CVE-2018-4300: Linux session cookies used a predictable random number seed.
  • All user commands now support the --help option (Issue #5326)
  • The lpoptions command now works with IPP Everywhere printers that have not yet been added as local queues (Issue #5045)
  • The lpadmin command would create a non-working printer in some error cases (Issue #5305)
  • The scheduler would crash if an empty AccessLog directive was specified (Issue #5309)
  • The scheduler did not idle-exit on some Linux distributions (Issue #5319)
  • Fixed a regression in the changes to ippValidateAttribute (Issue #5322, Issue #5330)
  • Fixed a crash bug in the Epson dot matrix driver (Issue #5323)
  • Automatic debug logging of job errors did not work with systemd (Issue #5337)
  • The web interface did not list the IPP Everywhere "driver" (Issue #5338)
  • The scheduler did not report all of the supported job options and values (Issue #5340)
  • The IPP Everywhere "driver" now properly supports face-up printers (Issue #5345)
  • Fixed some typos in the label printer drivers (Issue #5350)
  • Setting the Community name to the empty string in snmp.conf now disables SNMP supply level monitoring by all the standard network backends (Issue #5354)
  • Multi-file jobs could get stuck if the backend failed (Issue #5359, Issue #5413)
  • The IPP Everywhere "driver" no longer does local filtering when printing to a shared CUPS printer (Issue #5361)
  • The lpadmin command now correctly reports IPP errors when configuring an IPP Everywhere printer (Issue #5370)
  • Fixed some memory leaks discovered by Coverity (Issue #5375)
  • The PPD compiler incorrectly terminated JCL options (Issue #5379)
  • The cupstestppd utility did not generate errors for missing/mismatched CloseUI/JCLCloseUI keywords (Issue #5381)
  • The scheduler now reports the actual location of the log file (Issue #5398)
  • Added USB quirk rules (Issue #5395, Issue #5420, Issue #5443)
  • The generated PPD files for IPP Everywhere printers did not contain the cupsManualCopies keyword (Issue #5433)
  • Kerberos credentials might be truncated (Issue #5435)
  • The handling of MaxJobTime 0 did not match the documentation (Issue #5438)
  • Fixed a bug adding a queue with the -E option (Issue #5440)
  • The cupsaddsmb program has been removed (Issue #5449)
  • The cupstestdsc program has been removed (Issue #5450)
  • The scheduler was being backgrounded on macOS, causing applications to spin (rdar://40436080)
  • The scheduler did not validate that required initial request attributes were in the operation group (rdar://41098178)
  • Authentication in the web interface did not work on macOS (rdar://41444473)
  • Fixed an issue with HTTP Digest authentication (rdar://41709086)
  • The scheduler could crash when job history was purged (rdar://42198057)
  • Fixed a crash bug when mapping PPD duplex options to IPP attributes (rdar://46183976)
  • Fixed a memory leak for some IPP (extension) syntaxes.
  • The cupscgi, cupsmime, and cupsppdc support libraries are no longer installed as shared libraries.
  • The snmp backend is now deprecated.

Changes in CUPS v2.3b5

  • The ipptool program no longer checks for duplicate attributes when running in list or CSV mode (Issue #5278)
  • The cupsCreateJob, cupsPrintFile2, and cupsPrintFiles2 APIs did not use the supplied HTTP connection (Issue #5288)
  • Fixed another crash in the scheduler when adding an IPP Everywhere printer (Issue #5290)
  • Added a workaround for certain web browsers that do not support multiple authentication schemes in a single response header (Issue #5289)
  • Fixed policy limits containing the All operation (Issue #5296)
  • The scheduler was always restarted after idle-exit with systemd (Issue #5297)
  • Added a USB quirks rule for the HP LaserJet P1102 (Issue #5310)
  • The mailto notifier did not wait for the welcome message (Issue #5312)
  • Fixed a parsing bug in the pstops filter (Issue #5321)
  • Documentation updates (Issue #5299, Issue #5301, Issue #5306)
  • Localization updates (Issue #5317)
  • The scheduler allowed environment variables to be specified in the cupsd.conf file (rdar://37836779, rdar://37836995, rdar://37837252, rdar://37837581)
  • Fax queues did not support pause (p) or wait-for-dialtone (w) characters (rdar://39212256)
  • The scheduler did not validate notify-recipient-uri values properly (rdar://40068936)
  • The IPP parser allowed invalid group tags (rdar://40442124)
  • Fixed a parsing bug in the new authentication code.

Changes in CUPS v2.3b4

  • NOTICE: Printer drivers are now deprecated (Issue #5270)
  • Kerberized printing to another CUPS server did not work correctly (Issue #5233)
  • Fixed printing to some IPP Everywhere printers (Issue #5238)
  • Fixed installation of filters (Issue #5247)
  • The scheduler now supports using temporary print queues for older IPP/1.1 print queues like those shared by CUPS 1.3 and earlier (Issue #5241)
  • Star Micronics printers need the "unidir" USB quirk rule (Issue #5251)
  • Documentation fixes (Issue #5252)
  • Fixed a compile issue when PAM is not available (Issue #5253)
  • Label printers supported by the rastertolabel driver don't support SNMP, so don't delay printing to test it (Issue #5256)
  • The scheduler could crash while adding an IPP Everywhere printer (Issue #5258)
  • The Lexmark Optra E310 printer needs the "no-reattach" USB quirk rule (Issue #5259)
  • Systemd did not restart cupsd when configuration changes were made that required a restart (Issue #5263)
  • The IPP Everywhere PPD generator did not include the cupsJobPassword keyword, when supported (Issue #5265)
  • Fixed an Avahi crash bug in the scheduler (Issue #5268)
  • Raw print queues are now deprecated (Issue #5269)
  • Fixed an RPM packaging problem (Issue #5276)
  • The IPP backend did not properly detect failed PDF prints (rdar://34055474)
  • TLS connections now properly timeout (rdar://34938533)
  • Temp files could not be created in some sandboxed applications (rdar://37789645)
  • The ipptool --ippserver option did not encode out-of-band attributes correctly.
  • Added public cupsEncodeOption API for encoding a single option as an IPP attribute.
  • Removed support for the -D_PPD_DEPRECATED="" developer cheat - the PPD API should no longer be used.
  • Removed support for -D_IPP_PRIVATE_STRUCTURES=1 developer cheat - the IPP accessor functions should be used instead.

Changes in CUPS v2.3b3

  • More fixes for printing to old CUPS servers (Issue #5211)
  • The IPP Everywhere PPD generator did not support deep grayscale or 8-bit per component AdobeRGB (Issue #5227)
  • Additional changes for the scheduler to substitute default values for invalid job attributes when running in "relaxed conformance" mode (Issue #5229)
  • Localization changes (Issue #5232, rdar://37068158)
  • The cupsCopyDestInfo function did not work with all print queues (Issue #5235)

Changes in CUPS v2.3b2

  • Localization changes (Issue #5210)
  • Build fixes (Issue #5217)
  • IPP Everywhere PPDs were not localized to English (Issue #5205)
  • The cupsGetDests and cupsEnumDests functions no longer filter out local print services like IPP USB devices (Issue #5206)
  • The cupsCopyDest function now correctly copies the is_default value (Issue #5208)
  • Printing to old CUPS servers has been fixed (Issue #5211)
  • The ppdInstallableConflict tested too many constraints (Issue #5213)
  • All HTTP field values can now be longer than HTTP_MAX_VALUE bytes (Issue #5216)
  • Added a USB quirk rule for Canon MP280 series printers (Issue #5221)
  • The cupsRasterWritePixels function did not correctly swap bytes for some formats (Issue #5225)
  • Fixed an issue with mapping finishing options (rdar://34250727)
  • The ppdLocalizeIPPReason function incorrectly returned a localized version of "none" (rdar://36566269)
  • The scheduler did not add ".local" to the default DNS-SD host name when needed.

Changes in CUPS v2.3b1

  • CUPS is now provided under the Apache License, Version 2.0.
  • Documentation updates (Issue #4580, Issue #5177, Issue #5192)
  • The cupsCopyDestConflicts function now handles collection attribute ("media-col", "finishings-col", etc.) constraints (Issue #4096)
  • The lpoptions command incorrectly saved default options (Issue #4717)
  • The lpstat command now reports when new jobs are being held (Issue #4761)
  • The ippfind command now supports finding printers whose name starts with an underscore (Issue #4833)
  • The CUPS library now supports the latest HTTP Digest authentication specification including support for SHA-256 (Issue #4862)
  • The scheduler now supports the "printer-id" attribute (Issue #4868)
  • No longer support backslash, question mark, or quotes in printer names (Issue #4966)
  • The scheduler no longer logs pages as they are printed, instead just logging a total of the pages printed at job completion (Issue #4991)
  • Dropped RSS subscription management from the web interface (Issue #5012)
  • Bonjour printer sharing now uses the DNS-SD hostname (or ServerName value if none is defined) when registering shared printers on the network (Issue #5071)
  • The ipptool command now supports writing ippserver attributes files (Issue #5093)
  • The lp and lpr commands now provide better error messages when the default printer cannot be found (Issue #5096)
  • The lpadmin command now provides a better error message when an unsupported System V interface script is used (Issue #5111)
  • The scheduler did not write out dirty configuration and state files if there were open client connections (Issue #5118)
  • The SSLOptions directive now supports MinTLS and MaxTLS options to control the minimum and maximum TLS versions that will be allowed, respectively (Issue #5119)
  • Dropped hard-coded CGI scripting language support (Issue #5124)
  • The cupsEnumDests function did not include options from the lpoptions files (Issue #5144)
  • Fixed the ippserver sample code when threading is disabled or unavailable (Issue #5154)
  • Added label markup to checkbox and radio button controls in the web interface templates (Issue #5161)
  • Fixed group validation on OpenBSD (Issue #5166)
  • Improved IPP Everywhere media support, including a new cupsAddDestMediaOptions function (Issue #5167)
  • IPP Everywhere PPDs now include localizations of printer-specific media types, when available (Issue #5168)
  • The cups-driverd program incorrectly stopped scanning PPDs as soon as a loop was seen (Issue #5170)
  • IPP Everywhere PPDs now support IPP job presets (Issue #5179)
  • IPP Everywhere PPDs now support finishing templates (Issue #5180)
  • Fixed a journald support bug in the scheduler (Issue #5181)
  • Fixed PAM module detection and added support for the common PAM definitions (Issue #5185)
  • The scheduler now substitutes default values for invalid job attributes when running in "relaxed conformance" mode (Issue #5186)
  • The scheduler did not work with older versions of uClibc (Issue #5188)
  • The scheduler now generates a strings file for localizing PPD options (Issue #5194)