Security update for cjose SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2023:3030-1 Final 1 1 2023-07-31T08:18:47Z current 2023-07-31T08:18:47Z 2023-07-31T08:18:47Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for cjose This update for cjose fixes the following issues: - CVE-2023-37464: Fixed AES GCM decryption uses the Tag length from the actual Authentication Tag (bsc#1213385). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2023-3030,SUSE-OpenStack-Cloud-9-2023-3030,SUSE-OpenStack-Cloud-Crowbar-9-2023-3030,SUSE-SLE-SAP-12-SP4-2023-3030,SUSE-SLE-SERVER-12-SP4-ESPOS-2023-3030,SUSE-SLE-SERVER-12-SP4-LTSS-2023-3030,SUSE-SLE-SERVER-12-SP5-2023-3030 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2023/suse-su-20233030-1/ Link for SUSE-SU-2023:3030-1 https://lists.suse.com/pipermail/sle-updates/2023-July/030645.html E-Mail link for SUSE-SU-2023:3030-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1213385 SUSE Bug 1213385 https://www.suse.com/security/cve/CVE-2023-37464/ SUSE CVE CVE-2023-37464 page SUSE Linux Enterprise Server 12 SP4-ESPOS SUSE Linux Enterprise Server 12 SP4-LTSS SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE Linux Enterprise Server for SAP Applications 12 SP5 SUSE OpenStack Cloud 9 SUSE OpenStack Cloud Crowbar 9 libcjose-devel-0.6.1-7.5.1 libcjose0-0.6.1-7.5.1 libcjose0-0.6.1-7.5.1 as a component of SUSE Linux Enterprise Server 12 SP4-ESPOS libcjose0-0.6.1-7.5.1 as a component of SUSE Linux Enterprise Server 12 SP4-LTSS libcjose0-0.6.1-7.5.1 as a component of SUSE Linux Enterprise Server 12 SP5 libcjose0-0.6.1-7.5.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 libcjose0-0.6.1-7.5.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 libcjose0-0.6.1-7.5.1 as a component of SUSE OpenStack Cloud 9 libcjose0-0.6.1-7.5.1 as a component of SUSE OpenStack Cloud Crowbar 9 OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). The AES GCM decryption routine incorrectly uses the Tag length from the actual Authentication Tag provided in the JWE. The spec says that a fixed length of 16 octets must be applied. Therefore this bug allows an attacker to provide a truncated Authentication Tag and to modify the JWE accordingly. Users should upgrade to a version >= 0.6.2.2. Users unable to upgrade should avoid using AES GCM encryption and replace it with another encryption algorithm (e.g. AES CBC). CVE-2023-37464 SUSE Linux Enterprise Server 12 SP4-ESPOS:libcjose0-0.6.1-7.5.1 SUSE Linux Enterprise Server 12 SP4-LTSS:libcjose0-0.6.1-7.5.1 SUSE Linux Enterprise Server 12 SP5:libcjose0-0.6.1-7.5.1 SUSE Linux Enterprise Server for SAP Applications 12 SP4:libcjose0-0.6.1-7.5.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:libcjose0-0.6.1-7.5.1 SUSE OpenStack Cloud 9:libcjose0-0.6.1-7.5.1 SUSE OpenStack Cloud Crowbar 9:libcjose0-0.6.1-7.5.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2023/suse-su-20233030-1/ https://www.suse.com/security/cve/CVE-2023-37464.html CVE-2023-37464 https://bugzilla.suse.com/1213385 SUSE Bug 1213385