ESB-2026.5785

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.5785 Security update for gnutls 28 May 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: gnutls Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2026-33845 CVE-2026-3833 CVE-2026-5260 CVE-2026-5419 CVE-2026-33846 CVE-2026-42009 CVE-2026-42010 CVE-2026-42011 CVE-2026-42012 CVE-2026-42013 CVE-2026-42014 CVE-2026-42015 Original Bulletin: https://www.suse.com/support/update/announcement/2026/suse-su-202621784-1 Comment: CVSS (Max): 8.2 CVE-2026-33845 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H) CVSS Source: Red Hat, [SUSE] Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H EPSS (Max): 0.2% (48th)* CVE-2026-42009 2026-05-27 * Not all EPSS found when published - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for gnutls Announcement ID: SUSE-SU-2026:21784-1 Release Date: 2026-05-22T09:18:06Z Rating: important o bsc#1263704 o bsc#1263705 o bsc#1263707 o bsc#1263708 o bsc#1263709 o bsc#1263710 References: o bsc#1263711 o bsc#1263712 o bsc#1263713 o bsc#1263714 o bsc#1263715 o bsc#1263716 o CVE-2026-33845 o CVE-2026-33846 o CVE-2026-3833 o CVE-2026-42009 o CVE-2026-42010 o CVE-2026-42011 Cross-References: o CVE-2026-42012 o CVE-2026-42013 o CVE-2026-42014 o CVE-2026-42015 o CVE-2026-5260 o CVE-2026-5419 o CVE-2026-33845 ( SUSE ): 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N /UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N o CVE-2026-33845 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N /S:U/C:L/I:N/A:H o CVE-2026-33845 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-33845 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:H/I:N/A:H o CVE-2026-33846 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N /UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N o CVE-2026-33846 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N /S:U/C:N/I:N/A:H o CVE-2026-33846 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-3833 ( SUSE ): 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/ UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N o CVE-2026-3833 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:L/I:L/A:N o CVE-2026-3833 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:L/I:L/A:N o CVE-2026-3833 ( NVD ): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/ S:U/C:H/I:H/A:N o CVE-2026-42009 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N /UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N o CVE-2026-42009 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N /S:U/C:N/I:N/A:H o CVE-2026-42009 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-42010 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:L /UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N o CVE-2026-42010 ( SUSE ): 7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N /S:U/C:H/I:L/A:N o CVE-2026-42010 ( NVD ): 7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/ S:U/C:H/I:L/A:N o CVE-2026-42010 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ CVSS scores: S:U/C:H/I:H/A:H o CVE-2026-42011 ( SUSE ): 6.3 CVSS:4.0/AV:N/AC:H/AT:N/PR:N /UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N o CVE-2026-42011 ( SUSE ): 4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N /S:U/C:L/I:L/A:N o CVE-2026-42011 ( NVD ): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/ S:U/C:H/I:H/A:N o CVE-2026-42012 ( NVD ): 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:H/A:N o CVE-2026-42013 ( SUSE ): 8.3 CVSS:4.0/AV:N/AC:H/AT:N/PR:N /UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N o CVE-2026-42013 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N /S:U/C:L/I:H/A:N o CVE-2026-42013 ( NVD ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:L/I:H/A:N o CVE-2026-42014 ( SUSE ): 5.1 CVSS:4.0/AV:L/AC:L/AT:N/PR:N /UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N o CVE-2026-42014 ( SUSE ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N /S:U/C:N/I:N/A:L o CVE-2026-42015 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:N /UI:A/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N o CVE-2026-42015 ( SUSE ): 6.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R /S:U/C:N/I:L/A:H o CVE-2026-42015 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:L o CVE-2026-5260 ( SUSE ): 8.2 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/ UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N o CVE-2026-5260 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-5260 ( NVD ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:L/I:N/A:H o CVE-2026-5419 ( SUSE ): 6.3 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/ UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N o CVE-2026-5419 ( SUSE ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/ S:U/C:L/I:N/A:N Affected o SUSE Linux Micro 6.0 Products: An update that solves 12 vulnerabilities can now be installed. Description: This update for gnutls fixes the following issues o CVE-2026-3833: x509/name-constraints: compare domain names case-insensitive (bsc#1263707). o CVE-2026-5260: lib/pkcs11_privkey: guard against overreading on short ciphertexts (bsc#1263715). o CVE-2026-5419: gnutls_cipher_decrypt3: make PKCS#7 unpadding branch free (bsc#1263716). o CVE-2026-33845: buffers: switch from end_offset over to frag_length (bsc# 1263704). o CVE-2026-33846: buffers: add more checks to DTLS reassembly (bsc#1263705). o CVE-2026-42009: lib/buffers: ensure packets have differing sequence numbers (bsc#1263708). o CVE-2026-42010: lib/auth/rsa_psk: fix binary PSK identity lookup (bsc# 1263709). o CVE-2026-42011: x509/name_constraints: fix intersecting empty constraints (bsc#1263710). o CVE-2026-42012: x509/hostname-verify: make URI/SRV SAN preclude CN fallback (bsc#1263711). o CVE-2026-42013: x509: prevent fallback on oversized SAN (bsc#1263712). o CVE-2026-42014: pkcs11_write: fix UAF and leak in gnutls_pkcs11_token_set_pin (bsc#1263713). o CVE-2026-42015: x509/pkcs12_bag: fix off-by-one in bag element bounds chec (bsc#1263714). 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 6.0 zypper in -t patch SUSE-SLE-Micro-6.0-725=1 Package List: o SUSE Linux Micro 6.0 (aarch64 s390x x86_64) libgnutls30-3.8.3-7.1 gnutls-debuginfo-3.8.3-7.1 gnutls-3.8.3-7.1 gnutls-debugsource-3.8.3-7.1 libgnutls30-debuginfo-3.8.3-7.1 References: o https://www.suse.com/security/cve/CVE-2026-33845.html o https://www.suse.com/security/cve/CVE-2026-33846.html o https://www.suse.com/security/cve/CVE-2026-3833.html o https://www.suse.com/security/cve/CVE-2026-42009.html o https://www.suse.com/security/cve/CVE-2026-42010.html o https://www.suse.com/security/cve/CVE-2026-42011.html o https://www.suse.com/security/cve/CVE-2026-42012.html o https://www.suse.com/security/cve/CVE-2026-42013.html o https://www.suse.com/security/cve/CVE-2026-42014.html o https://www.suse.com/security/cve/CVE-2026-42015.html o https://www.suse.com/security/cve/CVE-2026-5260.html o https://www.suse.com/security/cve/CVE-2026-5419.html o https://bugzilla.suse.com/show_bug.cgi?id=1263704 o https://bugzilla.suse.com/show_bug.cgi?id=1263705 o https://bugzilla.suse.com/show_bug.cgi?id=1263707 o https://bugzilla.suse.com/show_bug.cgi?id=1263708 o https://bugzilla.suse.com/show_bug.cgi?id=1263709 o https://bugzilla.suse.com/show_bug.cgi?id=1263710 o https://bugzilla.suse.com/show_bug.cgi?id=1263711 o https://bugzilla.suse.com/show_bug.cgi?id=1263712 o https://bugzilla.suse.com/show_bug.cgi?id=1263713 o https://bugzilla.suse.com/show_bug.cgi?id=1263714 o https://bugzilla.suse.com/show_bug.cgi?id=1263715 o https://bugzilla.suse.com/show_bug.cgi?id=1263716 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. 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