{"id":"ALSA-2023:6643","summary":"Moderate: libssh security update","details":"libssh is a library which implements the SSH protocol. It can be used to implement client and server applications.\n\nSecurity Fix(es):\n\n* libssh: NULL pointer dereference during rekeying with algorithm guessing (CVE-2023-1667)\n* libssh: authorization bypass in pki_verify_data_signature (CVE-2023-2283)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.","modified":"2026-02-04T03:02:42.102768Z","published":"2023-11-07T00:00:00Z","related":["CVE-2023-1667","CVE-2023-2283"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:6643"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2023-1667"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2023-2283"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2182199"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2189736"},{"type":"ADVISORY","url":"https://errata.almalinux.org/9/ALSA-2023-6643.html"}],"affected":[{"package":{"name":"libssh","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/libssh"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.4-11.el9"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2023:6643.json"}},{"package":{"name":"libssh-config","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/libssh-config"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.4-11.el9"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2023:6643.json"}},{"package":{"name":"libssh-devel","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/libssh-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.4-11.el9"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2023:6643.json"}}],"schema_version":"1.7.3"}