CVE-2025-58364

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.12 and earlier, an unsafe deserialization and validation of printer attributes causes null dereference in the libcups library. This is a remote DoS vulnerability available in local subnet in default configurations. It can cause the cups & cups-browsed to crash, on all the machines in local network who are listening for printers (so by default for all regular linux machines). On systems where the vulnerability CVE-2024-47176 (cups-filters 1.x/cups-browsed 2.x vulnerability) was not fixed, and the firewall on the machine does not reject incoming communication to IPP port, and the machine is set to be available to public internet, attack vector "Network" is possible. The current versions of CUPS and cups-browsed projects have the attack vector "Adjacent" in their default configurations. Version 2.4.13 contains a patch for CVE-2025-58364.

CUPS is the standards-based, open source printing system developed by Apple Inc. for UNIX®-like operating systems. CUPS uses the Internet Printing Protocol (IPP) to support printing to local and network printers.

Security Fix(es):

'Hi all,\n\nthere is important security vulnerability in CUPS:\n\n\n\xa0\xa0 Description\n\n\n\xa0\xa0\xa0\xa0 Summary', 'Details', 'PoC\n\n- Configure CUPS with |DefaultAuthType Negotiate|.\n- Start CUPS', '- cat /etc/cups/cupsd.conf\nhaha\n\n\n\xa0\xa0\xa0\xa0 Impact', 'Patch', 'Have a nice day,\n\n\nZdenek Dohnal\n\n--\nZdenek Dohnal\nSenior Software Engineer\nRed Hat, BRQ-TPBC'

'Hi all!', 'Description\n\n\n\xa0\xa0\xa0\xa0 Summary', 'Details\n\nThe combination of:', 'Is shown in two places in OpenPrinting:\n\n|cups/scheduler/ipp.c libcupsfilters/cupsfilters/ipp.c |', 'PoC', 'Impact', 'Metrics:\n\n\n\xa0\xa0\xa0\xa0\xa0\xa0 CVSS v3 base metrics\n\nAttack vector Adjacent\nAttack complexity Low\nPrivileges required None\nUser interaction None\nScope Unchanged\nConfidentiality None\nIntegrity None\nAvailability High\n\nCredit -', 'Patch', 'Have a nice day!\n\n\nZdenek\n\n--\nZdenek Dohnal\nSenior Software Engineer\nRed Hat, BRQ-TPBC'

The Common UNIX Printing System (CUPS) provides a portable printing layer for Linux, UNIX, and similar operating systems.

Security Fix(es):

• cups: Null Pointer Dereference in CUPS ipp_read_io() Leading to Remote DoS (CVE-2025-58364)
• cups: Authentication Bypass in CUPS Authorization Handling (CVE-2025-58060)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The Common UNIX Printing System (CUPS) provides a portable printing layer for Linux, UNIX, and similar operating systems.

Security Fix(es):

• cups: Null Pointer Dereference in CUPS ipp_read_io() Leading to Remote DoS (CVE-2025-58364)
• cups: Authentication Bypass in CUPS Authorization Handling (CVE-2025-58060)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The Common UNIX Printing System (CUPS) provides a portable printing layer for Linux, UNIX, and similar operating systems.

Security Fix(es):

• cups: Null Pointer Dereference in CUPS ipp_read_io() Leading to Remote DoS (CVE-2025-58364)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.12 and earlier, an unsafe deserialization and validation of printer attributes causes null dereference in the libcups library. This is a remote DoS vulnerability available in local subnet in default configurations. It can cause the cups & cups-browsed to crash, on all the machines in local network who are listening for printers (so by default for all regular linux machines). On systems where the vulnerability CVE-2024-47176 (cups-filters 1.x/cups-browsed 2.x vulnerability) was not fixed, and the firewall on the machine does not reject incoming communication to IPP port, and the machine is set to be available to public internet, attack vector "Network" is possible. The current versions of CUPS and cups-browsed projects have the attack vector "Adjacent" in their default configurations. Version 2.4.13 contains a patch for CVE-2025-58364.

The Common UNIX Printing System (CUPS) provides a portable printing layer for
Linux, UNIX, and similar operating systems.

Security Fix(es):

• cups: Null Pointer Dereference in CUPS ipp_read_io() Leading to Remote DoS

(CVE-2025-58364)

• cups: Authentication Bypass in CUPS Authorization Handling (CVE-2025-58060)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE page(s)
listed in the References section.

The Common UNIX Printing System (CUPS) provides a portable printing layer for
Linux, UNIX, and similar operating systems.

Security Fix(es):

• cups: Null Pointer Dereference in CUPS ipp_read_io() Leading to Remote DoS (CVE-2025-58364)
• cups: Authentication Bypass in CUPS Authorization Handling (CVE-2025-58060)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE page(s)
listed in the References section.

The Common UNIX Printing System (CUPS) provides a portable printing layer for Linux, UNIX, and similar operating systems.

Security Fix(es):

• cups: Null Pointer Dereference in CUPS ipp_read_io() Leading to Remote DoS (CVE-2025-58364)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.12 and earlier, an unsafe deserialization and validation of printer attributes causes null dereference in the libcups library. This is a remote DoS vulnerability available in local subnet in default configurations. It can cause the cups & cups-browsed to crash, on all the machines in local network who are listening for printers (so by default for all regular linux machines). On systems where the vulnerability CVE-2024-47176 (cups-filters 1.x/cups-browsed 2.x vulnerability) was not fixed, and the firewall on the machine does not reject incoming communication to IPP port, and the machine is set to be available to public internet, attack vector "Network" is possible. The current versions of CUPS and cups-browsed projects have the attack vector "Adjacent" in their default configurations. Version 2.4.13 contains a patch for CVE-2025-58364.

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.12 and earlier, an unsafe deserialization and validation of printer attributes causes null dereference in the libcups library. This is a remote DoS vulnerability available in local subnet in default configurations. It can cause the cups & cups-browsed to crash, on all the machines in local network who are listening for printers (so by default for all regular linux machines). On systems where the vulnerability CVE-2024-47176 (cups-filters 1.x/cups-browsed 2.x vulnerability) was not fixed, and the firewall on the machine does not reject incoming communication to IPP port, and the machine is set to be available to public internet, attack vector "Network" is possible. The current versions of CUPS and cups-browsed projects have the attack vector "Adjacent" in their default configurations. Version 2.4.13 contains a patch for CVE-2025-58364.

• SECURITY UPDATE: IPP extension tag parsing vulnerability
  • debian/patches/CVE-2025-58364.patch: fix handling of extension tag in ipp_read_io()
  • CVE-2025-58364

• SECURITY UPDATE: IPP extension tag parsing vulnerability
  • debian/patches/CVE-2025-58364.patch: fix handling of extension tag in ipp_read_io()
  • CVE-2025-58364

• CVE-2025-58364: fix handling of extension tag in ipp_read_io()

• CVE-2025-58364: fix unsafe deserialization and validation of printer attributes causing null dereference

• CVE-2025-58364: fix unsafe deserialization and validation of printer attributes causing null dereference

• CVE-2025-58364: fix deserialization and validation issue in printer attributes to prevent null dereference

• CVE-2021-25317: install /var/log/cups as 0700 root:sys instead of 0755 lp:sys so the 'lp' user cannot plant symlinks that cupsd follows on log creation. This matches the mode cupsd itself computes for the log directory (0300|LogFilePerm with --with-log-file-perm=0600).
• CVE-2025-58364: already addressed by Patch103 (upstream e58cba9d), shipped in 1:1.6.3-52.tuxcare.els5; no code change in this release.

cups has Authentication bypass with AuthType Negotiate. (CVE-2025-58060) cups: Remote DoS via null dereference. (CVE-2025-58364)

These are all security issues fixed in the cups-2.4.14-1.1 package on the GA media of openSUSE Tumbleweed.

This update for cups fixes the following issues:

Update to version 2.4.16.

Security issues fixed:

• CVE-2025-61915: local denial-of-service via cupsd.conf update and related issues (bsc#1253783).
• CVE-2025-58436: slow client communication leads to a possible DoS attack (bsc#1244057).
• CVE-2025-58364: unsafe deserialization and validation of printer attributes can cause a null dereference (bsc#1249128).
• CVE-2025-58060: authentication bypass with AuthType Negotiate (bsc#1249049).

Other updates and bugfixes:

• Version upgrade to 2.4.16:

  • 'cupsUTF8ToCharset' didn't validate 2-byte UTF-8 sequences, potentially reading past the end of the source string (Issue #1438)
  • The web interface did not support domain usernames fully (Issue #1441)
  • Fixed an infinite loop issue in the GTK+ print dialog (Issue #1439 boo#1254353)
  • Fixed stopping scheduler on unknown directive in configuration (Issue #1443)
  • Fixed packages for Immutable Mode (jsc#PED-14775 from epic jsc#PED-14688)

• Version upgrade to 2.4.15:

  • Fixed potential crash in 'cups-driverd' when there are duplicate PPDs (Issue #1355)
  • Fixed error recovery when scanning for PPDs in 'cups-driverd' (Issue #1416)

• Version upgrade to 2.4.14.

• Version upgrade to 2.4.13:

  • Added 'print-as-raster' printer and job attributes for forcing rasterization (Issue #1282)
  • Updated documentation (Issue #1086)
  • Updated IPP backend to try a sanitized user name if the printer/server does not like the value (Issue #1145)
  • Updated the scheduler to send the "printer-added" or "printer-modified" events whenever an IPP Everywhere PPD is installed (Issue #1244)
  • Updated the scheduler to send the "printer-modified" event whenever the system default printer is changed (Issue #1246)
  • Fixed a memory leak in 'httpClose' (Issue #1223)
  • Fixed missing commas in 'ippCreateRequestedArray' (Issue #1234)
  • Fixed subscription issues in the scheduler and D-Bus notifier (Issue #1235)
  • Fixed media-default reporting for custom sizes (Issue #1238)
  • Fixed support for IPP/PPD options with periods or underscores (Issue #1249)
  • Fixed parsing of real numbers in PPD compiler source files (Issue #1263)
  • Fixed scheduler freezing with zombie clients (Issue #1264)
  • Fixed support for the server name in the ErrorLog filename (Issue #1277)
  • Fixed job cleanup after daemon restart (Issue #1315)
  • Fixed handling of buggy DYMO USB printer serial numbers (Issue #1338)
  • Fixed unreachable block in IPP backend (Issue #1351)
  • Fixed memory leak in _cupsConvertOptions (Issue #1354)

• Version upgrade to 2.4.12:

  • GnuTLS follows system crypto policies now (Issue #1105)
  • Added NoSystem SSLOptions value (Issue #1130)
  • Now we raise alert for certificate issues (Issue #1194)
  • Added Kyocera USB quirk (Issue #1198)
  • The scheduler now logs a job's debugging history if the backend fails (Issue #1205)
  • Fixed a potential timing issue with cupsEnumDests (Issue #1084)
  • Fixed a potential "lost PPD" condition in the scheduler (Issue #1109)
  • Fixed a compressed file error handling bug (Issue #1070)
  • Fixed a bug in the make-and-model whitespace trimming code (Issue #1096)
  • Fixed a removal of IPP Everywhere permanent queue if installation failed (Issue #1102)
  • Fixed ServerToken None in scheduler (Issue #1111)
  • Fixed invalid IPP keyword values created from PPD option names (Issue #1118)
  • Fixed handling of "media" and "PageSize" in the same print request (Issue #1125)
  • Fixed client raster printing from macOS (Issue #1143)
  • Fixed the default User-Agent string.
  • Fixed a recursion issue in ippReadIO.
  • Fixed handling incorrect radix in scan_ps() (Issue #1188)
  • Fixed validation of dateTime values with time zones more than UTC+11 (Issue #1201)
  • Fixed attributes returned by the Create-Xxx-Subscriptions requests (Issue…

This update for cups fixes the following issues:

• CVE-2025-58060: no password check when AuthType is set to anything but Basic and a request is made with an Authorization: Basic header (bsc#1249049).
• CVE-2025-58364: unsafe deserialization and validation of printer attributes leads to NULL pointer dereference (bsc#1249128).

This update for cups fixes the following issues:

• CVE-2024-47175: no validation of IPP attributes in ppdCreatePPDFromIPP2 when writing to a temporary PPD file allows for the injection of attacker-controlled data to the resulting PPD (bsc#1230932).
• CVE-2025-58060: no password check when AuthType is set to anything but Basic and a request is made with an Authorization: Basic header (bsc#1249049).
• CVE-2025-58364: unsafe deserialization and validation of printer attributes leads to NULL pointer dereference (bsc#1249128).

This update for cups fixes the following issues:

Update to version 2.4.16.

Security issues fixed:

• CVE-2025-61915: local denial-of-service via cupsd.conf update and related issues (bsc#1253783).
• CVE-2025-58436: slow client communication leads to a possible DoS attack (bsc#1244057).
• CVE-2025-58364: unsafe deserialization and validation of printer attributes can cause a null dereference (bsc#1249128).
• CVE-2025-58060: authentication bypass with AuthType Negotiate (bsc#1249049).

Other updates and bugfixes:

• Version upgrade to 2.4.16:

  • 'cupsUTF8ToCharset' didn't validate 2-byte UTF-8 sequences, potentially reading past the end of the source string (Issue #1438)
  • The web interface did not support domain usernames fully (Issue #1441)
  • Fixed an infinite loop issue in the GTK+ print dialog (Issue #1439 boo#1254353)
  • Fixed stopping scheduler on unknown directive in configuration (Issue #1443)
  • Fixed packages for Immutable Mode (jsc#PED-14775 from epic jsc#PED-14688)

• Version upgrade to 2.4.15:

  • Fixed potential crash in 'cups-driverd' when there are duplicate PPDs (Issue #1355)
  • Fixed error recovery when scanning for PPDs in 'cups-driverd' (Issue #1416)

• Version upgrade to 2.4.14.

• Version upgrade to 2.4.13:

  • Added 'print-as-raster' printer and job attributes for forcing rasterization (Issue #1282)
  • Updated documentation (Issue #1086)
  • Updated IPP backend to try a sanitized user name if the printer/server does not like the value (Issue #1145)
  • Updated the scheduler to send the "printer-added" or "printer-modified" events whenever an IPP Everywhere PPD is installed (Issue #1244)
  • Updated the scheduler to send the "printer-modified" event whenever the system default printer is changed (Issue #1246)
  • Fixed a memory leak in 'httpClose' (Issue #1223)
  • Fixed missing commas in 'ippCreateRequestedArray' (Issue #1234)
  • Fixed subscription issues in the scheduler and D-Bus notifier (Issue #1235)
  • Fixed media-default reporting for custom sizes (Issue #1238)
  • Fixed support for IPP/PPD options with periods or underscores (Issue #1249)
  • Fixed parsing of real numbers in PPD compiler source files (Issue #1263)
  • Fixed scheduler freezing with zombie clients (Issue #1264)
  • Fixed support for the server name in the ErrorLog filename (Issue #1277)
  • Fixed job cleanup after daemon restart (Issue #1315)
  • Fixed handling of buggy DYMO USB printer serial numbers (Issue #1338)
  • Fixed unreachable block in IPP backend (Issue #1351)
  • Fixed memory leak in _cupsConvertOptions (Issue #1354)

• Version upgrade to 2.4.12:

  • GnuTLS follows system crypto policies now (Issue #1105)
  • Added NoSystem SSLOptions value (Issue #1130)
  • Now we raise alert for certificate issues (Issue #1194)
  • Added Kyocera USB quirk (Issue #1198)
  • The scheduler now logs a job's debugging history if the backend fails (Issue #1205)
  • Fixed a potential timing issue with cupsEnumDests (Issue #1084)
  • Fixed a potential "lost PPD" condition in the scheduler (Issue #1109)
  • Fixed a compressed file error handling bug (Issue #1070)
  • Fixed a bug in the make-and-model whitespace trimming code (Issue #1096)
  • Fixed a removal of IPP Everywhere permanent queue if installation failed (Issue #1102)
  • Fixed ServerToken None in scheduler (Issue #1111)
  • Fixed invalid IPP keyword values created from PPD option names (Issue #1118)
  • Fixed handling of "media" and "PageSize" in the same print request (Issue #1125)
  • Fixed client raster printing from macOS (Issue #1143)
  • Fixed the default User-Agent string.
  • Fixed a recursion issue in ippReadIO.
  • Fixed handling incorrect radix in scan_ps() (Issue #1188)
  • Fixed validation of dateTime values with time zones more than UTC+11 (Issue #1201)
  • Fixed attributes returned by the Create-Xxx-Subscriptions requests (Issue…

This update for cups fixes the following issues:

Update to version 2.4.16.

Security issues fixed:

• CVE-2025-61915: local denial-of-service via cupsd.conf update and related issues (bsc#1253783).
• CVE-2025-58436: slow client communication leads to a possible DoS attack (bsc#1244057).
• CVE-2025-58364: unsafe deserialization and validation of printer attributes can cause a null dereference (bsc#1249128).
• CVE-2025-58060: authentication bypass with AuthType Negotiate (bsc#1249049).

Other updates and bugfixes:

• Version upgrade to 2.4.16:

  • 'cupsUTF8ToCharset' didn't validate 2-byte UTF-8 sequences, potentially reading past the end of the source string (Issue #1438)
  • The web interface did not support domain usernames fully (Issue #1441)
  • Fixed an infinite loop issue in the GTK+ print dialog (Issue #1439 boo#1254353)
  • Fixed stopping scheduler on unknown directive in configuration (Issue #1443)
  • Fixed packages for Immutable Mode (jsc#PED-14775 from epic jsc#PED-14688)

• Version upgrade to 2.4.15:

  • Fixed potential crash in 'cups-driverd' when there are duplicate PPDs (Issue #1355)
  • Fixed error recovery when scanning for PPDs in 'cups-driverd' (Issue #1416)

• Version upgrade to 2.4.14.

• Version upgrade to 2.4.13:

  • Added 'print-as-raster' printer and job attributes for forcing rasterization (Issue #1282)
  • Updated documentation (Issue #1086)
  • Updated IPP backend to try a sanitized user name if the printer/server does not like the value (Issue #1145)
  • Updated the scheduler to send the "printer-added" or "printer-modified" events whenever an IPP Everywhere PPD is installed (Issue #1244)
  • Updated the scheduler to send the "printer-modified" event whenever the system default printer is changed (Issue #1246)
  • Fixed a memory leak in 'httpClose' (Issue #1223)
  • Fixed missing commas in 'ippCreateRequestedArray' (Issue #1234)
  • Fixed subscription issues in the scheduler and D-Bus notifier (Issue #1235)
  • Fixed media-default reporting for custom sizes (Issue #1238)
  • Fixed support for IPP/PPD options with periods or underscores (Issue #1249)
  • Fixed parsing of real numbers in PPD compiler source files (Issue #1263)
  • Fixed scheduler freezing with zombie clients (Issue #1264)
  • Fixed support for the server name in the ErrorLog filename (Issue #1277)
  • Fixed job cleanup after daemon restart (Issue #1315)
  • Fixed handling of buggy DYMO USB printer serial numbers (Issue #1338)
  • Fixed unreachable block in IPP backend (Issue #1351)
  • Fixed memory leak in _cupsConvertOptions (Issue #1354)

• Version upgrade to 2.4.12:

  • GnuTLS follows system crypto policies now (Issue #1105)
  • Added NoSystem SSLOptions value (Issue #1130)
  • Now we raise alert for certificate issues (Issue #1194)
  • Added Kyocera USB quirk (Issue #1198)
  • The scheduler now logs a job's debugging history if the backend fails (Issue #1205)
  • Fixed a potential timing issue with cupsEnumDests (Issue #1084)
  • Fixed a potential "lost PPD" condition in the scheduler (Issue #1109)
  • Fixed a compressed file error handling bug (Issue #1070)
  • Fixed a bug in the make-and-model whitespace trimming code (Issue #1096)
  • Fixed a removal of IPP Everywhere permanent queue if installation failed (Issue #1102)
  • Fixed ServerToken None in scheduler (Issue #1111)
  • Fixed invalid IPP keyword values created from PPD option names (Issue #1118)
  • Fixed handling of "media" and "PageSize" in the same print request (Issue #1125)
  • Fixed client raster printing from macOS (Issue #1143)
  • Fixed the default User-Agent string.
  • Fixed a recursion issue in ippReadIO.
  • Fixed handling incorrect radix in scan_ps() (Issue #1188)
  • Fixed validation of dateTime values with time zones more than UTC+11 (Issue #1201)
  • Fixed attributes returned by the Create-Xxx-Subscriptions requests (Issue…

This update for cups fixes the following issues:

Update to version 2.4.16.

Security issues fixed:

• CVE-2025-58436: single client sending slow messages to cupsd can delay the application and make it unusable for other clients (bsc#1244057).
• CVE-2025-58060: authentication bypass with AuthType negotiate (bsc#1249049).
• CVE-2025-58364: unsafe deserialization and validation of printer attributes can lead to null dereference (bsc#1249128).
• CVE-2025-61915: local denial-of-service via cupsd.conf update and related issues (bsc#1253783).

Other updates and bugfixes:

• Version upgrade to 2.4.16:

  • 'cupsUTF8ToCharset' didn't validate 2-byte UTF-8 sequences, potentially reading past the end of the source string (Issue #1438)
  • The web interface did not support domain usernames fully (Issue #1441)
  • Fixed an infinite loop issue in the GTK+ print dialog (Issue #1439 bsc#1254353)
  • Fixed stopping scheduler on unknown directive in configuration (Issue #1443)

• Version upgrade to 2.4.15:

  • Fixed potential crash in 'cups-driverd' when there are duplicate PPDs (Issue #1355)
  • Fixed error recovery when scanning for PPDs in 'cups-driverd' (Issue #1416)

• Fix packages for Immutable Mode - cups (jsc#PED-14775,jsc#PED-14688)

• Version upgrade to 2.4.14.

• Version upgrade to 2.4.13:

  • Added 'print-as-raster' printer and job attributes for forcing rasterization (Issue #1282)
  • Updated documentation (Issue #1086)
  • Updated IPP backend to try a sanitized user name if the printer/server does not like the value (Issue #1145)
  • Updated the scheduler to send the "printer-added" or "printer-modified" events whenever an IPP Everywhere PPD is installed (Issue #1244)
  • Updated the scheduler to send the "printer-modified" event whenever the system default printer is changed (Issue #1246)
  • Fixed a memory leak in 'httpClose' (Issue #1223)
  • Fixed missing commas in 'ippCreateRequestedArray' (Issue #1234)
  • Fixed subscription issues in the scheduler and D-Bus notifier (Issue #1235)
  • Fixed media-default reporting for custom sizes (Issue #1238)
  • Fixed support for IPP/PPD options with periods or underscores (Issue #1249)
  • Fixed parsing of real numbers in PPD compiler source files (Issue #1263)
  • Fixed scheduler freezing with zombie clients (Issue #1264)
  • Fixed support for the server name in the ErrorLog filename (Issue #1277)
  • Fixed job cleanup after daemon restart (Issue #1315)
  • Fixed handling of buggy DYMO USB printer serial numbers (Issue #1338)
  • Fixed unreachable block in IPP backend (Issue #1351)
  • Fixed memory leak in _cupsConvertOptions (Issue #1354)

• Version upgrade to 2.4.12:

  • GnuTLS follows system crypto policies now (Issue #1105)
  • Added NoSystem SSLOptions value (Issue #1130)
  • Now we raise alert for certificate issues (Issue #1194)
  • Added Kyocera USB quirk (Issue #1198)
  • The scheduler now logs a job's debugging history if the backend fails (Issue #1205)
  • Fixed a potential timing issue with cupsEnumDests (Issue #1084)
  • Fixed a potential "lost PPD" condition in the scheduler (Issue #1109)
  • Fixed a compressed file error handling bug (Issue #1070)
  • Fixed a bug in the make-and-model whitespace trimming code (Issue #1096)
  • Fixed a removal of IPP Everywhere permanent queue if installation failed (Issue #1102)
  • Fixed ServerToken None in scheduler (Issue #1111)
  • Fixed invalid IPP keyword values created from PPD option names (Issue #1118)
  • Fixed handling of "media" and "PageSize" in the same print request (Issue #1125)
  • Fixed client raster printing from macOS (Issue #1143)
  • Fixed the default User-Agent string.
  • Fixed a recursion issue in ippReadIO.
  • Fixed handling incorrect radix in scan_ps() (Issue #1188)
  • Fixed validation of dateTime values with time zones more than UTC+11 (Issue #1201)
  • Fixed attributes returned…

This update for cups fixes the following issues:

Update to version 2.4.16.

Security issues fixed:

• CVE-2025-58436: single client sending slow messages to cupsd can delay the application and make it unusable for other clients (bsc#1244057).
• CVE-2025-58060: authentication bypass with AuthType negotiate (bsc#1249049).
• CVE-2025-58364: unsafe deserialization and validation of printer attributes can lead to null dereference (bsc#1249128).
• CVE-2025-61915: local denial-of-service via cupsd.conf update and related issues (bsc#1253783).

Other updates and bugfixes:

• Version upgrade to 2.4.16:

  • 'cupsUTF8ToCharset' didn't validate 2-byte UTF-8 sequences, potentially reading past the end of the source string (Issue #1438)
  • The web interface did not support domain usernames fully (Issue #1441)
  • Fixed an infinite loop issue in the GTK+ print dialog (Issue #1439 bsc#1254353)
  • Fixed stopping scheduler on unknown directive in configuration (Issue #1443)

• Version upgrade to 2.4.15:

  • Fixed potential crash in 'cups-driverd' when there are duplicate PPDs (Issue #1355)
  • Fixed error recovery when scanning for PPDs in 'cups-driverd' (Issue #1416)

• Fix packages for Immutable Mode - cups (jsc#PED-14775,jsc#PED-14688)

• Version upgrade to 2.4.14.

• Version upgrade to 2.4.13:

  • Added 'print-as-raster' printer and job attributes for forcing rasterization (Issue #1282)
  • Updated documentation (Issue #1086)
  • Updated IPP backend to try a sanitized user name if the printer/server does not like the value (Issue #1145)
  • Updated the scheduler to send the "printer-added" or "printer-modified" events whenever an IPP Everywhere PPD is installed (Issue #1244)
  • Updated the scheduler to send the "printer-modified" event whenever the system default printer is changed (Issue #1246)
  • Fixed a memory leak in 'httpClose' (Issue #1223)
  • Fixed missing commas in 'ippCreateRequestedArray' (Issue #1234)
  • Fixed subscription issues in the scheduler and D-Bus notifier (Issue #1235)
  • Fixed media-default reporting for custom sizes (Issue #1238)
  • Fixed support for IPP/PPD options with periods or underscores (Issue #1249)
  • Fixed parsing of real numbers in PPD compiler source files (Issue #1263)
  • Fixed scheduler freezing with zombie clients (Issue #1264)
  • Fixed support for the server name in the ErrorLog filename (Issue #1277)
  • Fixed job cleanup after daemon restart (Issue #1315)
  • Fixed handling of buggy DYMO USB printer serial numbers (Issue #1338)
  • Fixed unreachable block in IPP backend (Issue #1351)
  • Fixed memory leak in _cupsConvertOptions (Issue #1354)

• Version upgrade to 2.4.12:

  • GnuTLS follows system crypto policies now (Issue #1105)
  • Added NoSystem SSLOptions value (Issue #1130)
  • Now we raise alert for certificate issues (Issue #1194)
  • Added Kyocera USB quirk (Issue #1198)
  • The scheduler now logs a job's debugging history if the backend fails (Issue #1205)
  • Fixed a potential timing issue with cupsEnumDests (Issue #1084)
  • Fixed a potential "lost PPD" condition in the scheduler (Issue #1109)
  • Fixed a compressed file error handling bug (Issue #1070)
  • Fixed a bug in the make-and-model whitespace trimming code (Issue #1096)
  • Fixed a removal of IPP Everywhere permanent queue if installation failed (Issue #1102)
  • Fixed ServerToken None in scheduler (Issue #1111)
  • Fixed invalid IPP keyword values created from PPD option names (Issue #1118)
  • Fixed handling of "media" and "PageSize" in the same print request (Issue #1125)
  • Fixed client raster printing from macOS (Issue #1143)
  • Fixed the default User-Agent string.
  • Fixed a recursion issue in ippReadIO.
  • Fixed handling incorrect radix in scan_ps() (Issue #1188)
  • Fixed validation of dateTime values with time zones more than UTC+11 (Issue #1201)
  • Fixed attributes returned…

It was discovered that CUPS incorrectly handled authentication types other than Basic. An attacker could possibly use this issue to bypass authentication. (CVE-2025-58060)

It was discovered that CUPS incorrectly handled deserialization and validation of printer attributes. An attacker could possibly use this issue to cause a denial of service. (CVE-2025-58364)