SUSE alert openSUSE-SU-2026:20812-1 (cups)

From:
             
 
null@suse.de
To:
             
 
security-announce@lists.opensuse.org
Subject:
             
 
openSUSE-SU-2026:20812-1: important: Security update for cups
Date:
             
 
Thu, 28 May 2026 17:51:43 +0200
Message-ID:
             
 
<20260528155143.D3E82FCCC@maintenance.suse.de>
Archive-link:
             
 
Article
openSUSE security update: security update for cups
-------------------------------------------------------------

Announcement ID: openSUSE-SU-2026:20812-1
Rating: important
References:

  * bsc#1261568
  * bsc#1261569
  * bsc#1261570
  * bsc#1261571
  * bsc#1261572
  * bsc#1261742
  * bsc#1261743
  * bsc#1263116



Cross-References:

  * CVE-2026-27447
  * CVE-2026-34978
  * CVE-2026-34979
  * CVE-2026-34980
  * CVE-2026-34990
  * CVE-2026-39314
  * CVE-2026-39316
  * CVE-2026-41079



CVSS scores:

  * CVE-2026-27447 ( SUSE ): 4.8 CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N
  * CVE-2026-34978 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
  * CVE-2026-34979 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-34980 ( SUSE ): 6.4 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L
  * CVE-2026-34990 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-39314 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39314 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-39316 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39316 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-41079 ( SUSE ): 3.5 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-41079 ( SUSE ): 5.1 CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Affected Products:

         openSUSE Leap 16.0

-------------------------------------------------------------

An update that solves 8 vulnerabilities and has 8 bug fixes can now be installed.

Description:

This update for cups fixes the following issues

- CVE-2026-27447: Authorization bypass via case-insensitive group-member lookup (bsc#1261572).
- CVE-2026-34978: Path traversal in RSS notify-recipient-uri enables file write outside
CacheDir/rss (bsc#1261571).
- CVE-2026-34979: Heap overflow in `get_options()` (bsc#1261570).
- CVE-2026-34980: Shared PostScript queue lets anonymous Print-Job requests reach `lp` code
execution over the network
  (bsc#1261569).
- CVE-2026-34990: Local print admin token disclosure using temporary printers (bsc#1261568).
- CVE-2026-39314: negative `job-password-supported` attribute can lead to a denial of service
(bsc#1261743).
- CVE-2026-39316: dangling subscription pointer can lead to a denial of service (bsc#1261742).
- CVE-2026-41079: crafted SNMP response can lead to stack-based out-of-bounds read and sensitive
memory disclosure
  (bsc#1263116).

Changes for cups:

- Version upgrade to 2.4.19.

- Version upgrade to 2.4.18.

- Version upgrade to 2.4.17:

 * The scheduler followed symbolic links when cleaning out
 its temporary directory (Issue #1448)
 * Updated `cupsFileGetConf` and `cupsFilePutConf` to escape
 more characters.
 * Updated man page `cancel` (Issue #984)
 * Updated `cupsRasterReadHeader` to validate more of the
 page header values (Issue #1501)
 * Fixed an issue with the class/printer CGI name checking.
 * Fixed infinite loop in `http_write()` on busy print servers
 (Issue #827)
 * Fixed potential TLS blocking issues (Issue #1128)
 * Fixed a job history bug in the scheduler (Issue #1440)
 * Fixed notifier logging bug that would result in nul bytes
 getting into the log (Issue #1450)
 * Fixed possible use-after-free in `cupsdReadClient()`
 (Issue #1454)
 * Fixed a document format bug in the IPP backend (Issue #1457)
 * Fixed DRAIN_OUTPUT race condition (Issue #1461)
 * Fixed a bug when then `ippFindXxx` and `ippSetXxx` functions
 were mixed.
 * Fixed the mapping of supply type keywords to SNMP names.
 * Fixed a bug in the IPP backend when SNMP was disabled.
 * Fixed a crash bug in the rastertoepson filter.
 * Fixed a bug in cgiCheckVariables.
 * Fixed handling read/write errors with OpenSSL (Issue #1506)
 * Fixed handling rehandshake error in `_httpTLSRead`
 (Issue #1508)
 * Fixed a debug printf bug on Windows (Issue #1529)
 * Fixed a recursion issue with encoding of nested collections
 (Issue #1539)
 * Fixed parsing of the `LimitRequestBody`, `MaxLogSize`,
 and `MaxRequestSize` directives in "cupsd.conf" (Issue #1540)
 * Fixed a parsing bug in `ipptool` (Issue #1542)
 * Fixed blank line detection in the `rastertolabel` filter
 (Issue #1545)
 * Fixed `httpPeek` edge case on compressed streams


Patch instructions:

   To install this openSUSE security update use the suse recommended installation methods
   like YaST online_update or "zypper patch".
   Alternatively you can run the command listed for your product:

- openSUSE Leap 16.0

   zypper in -t patch openSUSE-Leap-16.0-802=1

Package List:

- openSUSE Leap 16.0:

  cups-2.4.19-160000.1.1
  cups-client-2.4.19-160000.1.1
  cups-config-2.4.19-160000.1.1
  cups-ddk-2.4.19-160000.1.1
  cups-devel-2.4.19-160000.1.1
  libcups2-2.4.19-160000.1.1
  libcupsimage2-2.4.19-160000.1.1

References:

  * https://www.suse.com/security/cve/CVE-2026-27447.html
  * https://www.suse.com/security/cve/CVE-2026-34978.html
  * https://www.suse.com/security/cve/CVE-2026-34979.html
  * https://www.suse.com/security/cve/CVE-2026-34980.html
  * https://www.suse.com/security/cve/CVE-2026-34990.html
  * https://www.suse.com/security/cve/CVE-2026-39314.html
  * https://www.suse.com/security/cve/CVE-2026-39316.html
  * https://www.suse.com/security/cve/CVE-2026-41079.html