{"id":"CLSA-2025-1751038683","aliases":[],"status":"published","title":"Update of tzdata","description":"- Upgrade to tzdata-2025b\n  - New zone for Aysén Region in Chile which moves from -04/-03 to -03.\n  - Paraguay adopted permanent -03 starting spring 2024.\n  - Improve pre-1991 data for the Philippines.\n  - Etc/Unknown is now reserved.\n  - Improve historical data for Mexico, Mongolia, and Portugal.\n  - System V names are now obsolescent.\n  - The main data form now uses %z.\n  - The code now conforms to RFC 8536 for early timestamps.\n  - Support POSIX.1-2024, which removes asctime_r and ctime_r.\n  - Assume POSIX.2-1992 or later for shell scripts.\n  - SUPPORT_C89 now defaults to 1.\n- Add leap-seconds.list to installed files.","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2025-06-27T15:38:09Z","modified":"2026-06-01T00:33:21Z","fixes":[{"ecosystem":"TuxCare:CentOS:8.4","package":"tzdata","fixed_in":["2025b-1.el8.tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:CentOS:8.4","package":"tzdata-java","fixed_in":["2025b-1.el8.tuxcare.els1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"TuxCare:CentOS:8.4","package":"tzdata","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2025b-1.el8.tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:CentOS:8.4","package":"tzdata-java","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2025b-1.el8.tuxcare.els1"}]}]}],"references":[{"url":"https://errata.tuxcare.com/els_os/centos8.4els/CLSA-2025-1751038683.html","tags":["advisory"]}],"sources":{"osv":[{"id":"CLSA-2025-1751038683","title":"Update of tzdata","description":"- Upgrade to tzdata-2025b\n  - New zone for Aysén Region in Chile which moves from -04/-03 to -03.\n  - Paraguay adopted permanent -03 starting spring 2024.\n  - Improve pre-1991 data for the Philippines.\n  - Etc/Unknown is now reserved.\n  - Improve historical data for Mexico, Mongolia, and Portugal.\n  - System V names are now obsolescent.\n  - The main data form now uses %z.\n  - The code now conforms to RFC 8536 for early timestamps.\n  - Support POSIX.1-2024, which removes asctime_r and ctime_r.\n  - Assume POSIX.2-1992 or later for shell scripts.\n  - SUPPORT_C89 now defaults to 1.\n- Add leap-seconds.list to installed files.","status":"published","published":"2025-06-27T15:38:09Z","modified":"2026-06-01T00:33:21.240001723Z","updated_at":"2026-11-02T15:43:41.66212Z"}]}}