ESB-2026.5911

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.5911 Security update for cups 1 June 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: cups Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2026-27447 CVE-2026-34978 CVE-2026-34979 CVE-2026-39314 CVE-2026-39316 CVE-2026-41079 CVE-2026-34980 CVE-2026-34990 Original Bulletin: https://www.suse.com/support/update/announcement/2026/suse-su-202621836-1 Comment: CVSS (Max): 7.8 CVE-2026-34990 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) CVSS Source: SUSE Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H EPSS (Max): 0.0% (9th) CVE-2026-34978 2026-05-31 - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for cups Announcement ID: SUSE-SU-2026:21836-1 Release Date: 2026-05-26T12:19:57Z Rating: important o bsc#1261568 o bsc#1261569 o bsc#1261570 o bsc#1261571 References: o bsc#1261572 o bsc#1261742 o bsc#1261743 o bsc#1263116 o CVE-2026-27447 o CVE-2026-34978 o CVE-2026-34979 o CVE-2026-34980 Cross-References: o CVE-2026-34990 o CVE-2026-39314 o CVE-2026-39316 o CVE-2026-41079 o 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 o CVE-2026-27447 ( NVD ): 6.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/ S:U/C:H/I:L/A:N o CVE-2026-27447 ( NVD ): 4.8 CVSS:3.1/AV:N/AC:H/PR:H/UI:R/ S:U/C:H/I:L/A:N o 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 o CVE-2026-34978 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:L/A:L o 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 o CVE-2026-34979 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:L o 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 o CVE-2026-34980 ( NVD ): 6.1 CVSS:4.0/AV:A/AC:L/AT:P/PR:N/ UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/ MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/ MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X o CVE-2026-34980 ( NVD ): 7.5 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/ S:U/C:H/I:H/A:H o 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 o CVE-2026-34990 ( NVD ): 5.0 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/ UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/ MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/ CVSS scores: MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X o CVE-2026-34990 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H o 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 o 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 o CVE-2026-39314 ( NVD ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:L o CVE-2026-39314 ( NVD ): 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o 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 o 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 o CVE-2026-39316 ( NVD ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:L o CVE-2026-39316 ( NVD ): 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o 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 o 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 o CVE-2026-41079 ( NVD ): 4.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/ S:U/C:L/I:N/A:N o CVE-2026-41079 ( NVD ): 5.4 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/ S:U/C:L/I:N/A:L Affected o SUSE Linux Micro 6.2 Products: An update that solves eight vulnerabilities can now be installed. Description: This update for cups fixes the following issues o CVE-2026-27447: Authorization bypass via case-insensitive group-member lookup (bsc#1261572). o CVE-2026-34978: Path traversal in RSS notify-recipient-uri enables file write outside CacheDir/rss (bsc#1261571). o CVE-2026-34979: Heap overflow in get_options() (bsc#1261570). o CVE-2026-34980: Shared PostScript queue lets anonymous Print-Job requests reach lp code execution over the network (bsc#1261569). o CVE-2026-34990: Local print admin token disclosure using temporary printers (bsc#1261568). o CVE-2026-39314: negative job-password-supported attribute can lead to a denial of service (bsc#1261743). o CVE-2026-39316: dangling subscription pointer can lead to a denial of service (bsc#1261742). o CVE-2026-41079: crafted SNMP response can lead to stack-based out-of-bounds read and sensitive memory disclosure (bsc#1263116). Changes for cups: o Version upgrade to 2.4.19. o Version upgrade to 2.4.18. o Version upgrade to 2.4.17: o The scheduler followed symbolic links when cleaning out its temporary directory (Issue #1448) o Updated cupsFileGetConf and cupsFilePutConf to escape more characters. o Updated man page cancel (Issue #984) o Updated cupsRasterReadHeader to validate more of the page header values (Issue #1501) o Fixed an issue with the class/printer CGI name checking. o Fixed infinite loop in http_write() on busy print servers (Issue #827) o Fixed potential TLS blocking issues (Issue #1128) o Fixed a job history bug in the scheduler (Issue #1440) o Fixed notifier logging bug that would result in nul bytes getting into the log (Issue #1450) o Fixed possible use-after-free in cupsdReadClient() (Issue #1454) o Fixed a document format bug in the IPP backend (Issue #1457) o Fixed DRAIN_OUTPUT race condition (Issue #1461) o Fixed a bug when then ippFindXxx and ippSetXxx functions were mixed. o Fixed the mapping of supply type keywords to SNMP names. o Fixed a bug in the IPP backend when SNMP was disabled. o Fixed a crash bug in the rastertoepson filter. o Fixed a bug in cgiCheckVariables. o Fixed handling read/write errors with OpenSSL (Issue #1506) o Fixed handling rehandshake error in _httpTLSRead (Issue #1508) o Fixed a debug printf bug on Windows (Issue #1529) o Fixed a recursion issue with encoding of nested collections (Issue #1539) o Fixed parsing of the LimitRequestBody , MaxLogSize , and MaxRequestSize directives in "cupsd.conf" (Issue #1540) o Fixed a parsing bug in ipptool (Issue #1542) o Fixed blank line detection in the rastertolabel filter (Issue #1545) o Fixed httpPeek edge case on compressed streams Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: o SUSE Linux Micro 6.2 zypper in -t patch SUSE-SL-Micro-6.2-802=1 Package List: o SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64) libcups2-debuginfo-2.4.19-160000.1.1 cups-config-2.4.19-160000.1.1 libcups2-2.4.19-160000.1.1 cups-debuginfo-2.4.19-160000.1.1 cups-debugsource-2.4.19-160000.1.1 References: o https://www.suse.com/security/cve/CVE-2026-27447.html o https://www.suse.com/security/cve/CVE-2026-34978.html o https://www.suse.com/security/cve/CVE-2026-34979.html o https://www.suse.com/security/cve/CVE-2026-34980.html o https://www.suse.com/security/cve/CVE-2026-34990.html o https://www.suse.com/security/cve/CVE-2026-39314.html o https://www.suse.com/security/cve/CVE-2026-39316.html o https://www.suse.com/security/cve/CVE-2026-41079.html o https://bugzilla.suse.com/show_bug.cgi?id=1261568 o https://bugzilla.suse.com/show_bug.cgi?id=1261569 o https://bugzilla.suse.com/show_bug.cgi?id=1261570 o https://bugzilla.suse.com/show_bug.cgi?id=1261571 o https://bugzilla.suse.com/show_bug.cgi?id=1261572 o https://bugzilla.suse.com/show_bug.cgi?id=1261742 o https://bugzilla.suse.com/show_bug.cgi?id=1261743 o https://bugzilla.suse.com/show_bug.cgi?id=1263116 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. 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