{"id":"SUSE-SU-2026:4202-1","summary":"Security update for corosync","details":"This update for corosync fixes the following issues:\n\n- CVE-2026-81665: heap-based buffer overflow in totempg assembly buffer during fragmented message reassembly\n  (bsc#1278738).\n- CVE-2026-81666: integer overflow in check_memb_commit_token_sanity may bypass message length validation on 32-bit\n  systems (bsc#1278739).\n","modified":"2026-09-16T21:45:03.596530847Z","published":"2026-09-16T08:18:19Z","related":["CVE-2026-81665","CVE-2026-81666"],"upstream":["CVE-2026-81665","CVE-2026-81666"],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2026/suse-su-20264202-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1278738"},{"type":"REPORT","url":"https://bugzilla.suse.com/1278739"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-81665"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-81666"}],"affected":[{"package":{"name":"corosync","ecosystem":"SUSE:Linux Enterprise High Availability Extension 15 SP4","purl":"pkg:rpm/suse/corosync&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.6-150300.12.19.1"}]}],"ecosystem_specific":{"binaries":[{"libsam4":"2.4.6-150300.12.19.1","libtotem_pg5":"2.4.6-150300.12.19.1","corosync-testagents":"2.4.6-150300.12.19.1","corosync-qdevice":"2.4.6-150300.12.19.1","corosync":"2.4.6-150300.12.19.1","libcorosync-devel":"2.4.6-150300.12.19.1","libvotequorum8":"2.4.6-150300.12.19.1","libcorosync_common4":"2.4.6-150300.12.19.1","libcmap4":"2.4.6-150300.12.19.1","libcpg4":"2.4.6-150300.12.19.1","corosync-qnetd":"2.4.6-150300.12.19.1","libcfg6":"2.4.6-150300.12.19.1","libquorum5":"2.4.6-150300.12.19.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4202-1.json"}},{"package":{"name":"corosync","ecosystem":"SUSE:Linux Enterprise High Availability Extension 15 SP5","purl":"pkg:rpm/suse/corosync&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP5"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.6-150300.12.19.1"}]}],"ecosystem_specific":{"binaries":[{"corosync-qdevice":"2.4.6-150300.12.19.1","corosync-qnetd":"2.4.6-150300.12.19.1","libcfg6":"2.4.6-150300.12.19.1","corosync":"2.4.6-150300.12.19.1","libcmap4":"2.4.6-150300.12.19.1","libcorosync-devel":"2.4.6-150300.12.19.1","libtotem_pg5":"2.4.6-150300.12.19.1","libvotequorum8":"2.4.6-150300.12.19.1","corosync-testagents":"2.4.6-150300.12.19.1","libquorum5":"2.4.6-150300.12.19.1","libcpg4":"2.4.6-150300.12.19.1","libsam4":"2.4.6-150300.12.19.1","libcorosync_common4":"2.4.6-150300.12.19.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4202-1.json"}},{"package":{"name":"corosync","ecosystem":"SUSE:Linux Enterprise High Availability Extension 15 SP6","purl":"pkg:rpm/suse/corosync&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.6-150300.12.19.1"}]}],"ecosystem_specific":{"binaries":[{"corosync-qnetd":"2.4.6-150300.12.19.1","libtotem_pg5":"2.4.6-150300.12.19.1","libcorosync_common4":"2.4.6-150300.12.19.1","corosync":"2.4.6-150300.12.19.1","corosync-qdevice":"2.4.6-150300.12.19.1","libcorosync-devel":"2.4.6-150300.12.19.1","libquorum5":"2.4.6-150300.12.19.1","libcpg4":"2.4.6-150300.12.19.1","libsam4":"2.4.6-150300.12.19.1","libcmap4":"2.4.6-150300.12.19.1","libcfg6":"2.4.6-150300.12.19.1","libvotequorum8":"2.4.6-150300.12.19.1","corosync-testagents":"2.4.6-150300.12.19.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4202-1.json"}},{"package":{"name":"corosync","ecosystem":"SUSE:Linux Enterprise High Availability Extension 15 SP7","purl":"pkg:rpm/suse/corosync&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.6-150300.12.19.1"}]}],"ecosystem_specific":{"binaries":[{"libtotem_pg5":"2.4.6-150300.12.19.1","libcfg6":"2.4.6-150300.12.19.1","libsam4":"2.4.6-150300.12.19.1","libvotequorum8":"2.4.6-150300.12.19.1","libcorosync-devel":"2.4.6-150300.12.19.1","libcorosync_common4":"2.4.6-150300.12.19.1","corosync-testagents":"2.4.6-150300.12.19.1","libcpg4":"2.4.6-150300.12.19.1","corosync-qnetd":"2.4.6-150300.12.19.1","libquorum5":"2.4.6-150300.12.19.1","corosync":"2.4.6-150300.12.19.1","corosync-qdevice":"2.4.6-150300.12.19.1","libcmap4":"2.4.6-150300.12.19.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4202-1.json"}}],"schema_version":"1.9.0"}