{"id":"CLSA-2026-1788951485","summary":"Fix CVE(s): CVE-2026-54874","details":"   * SECURITY UPDATE: Unbounded memory retention in the DTLS record layer.\n     dtls1_buffer_record() adopted the entire live read buffer for every queued\n     record and allocated a fresh one, so a peer could pin roughly 17.7 KB of\n     heap per queued record regardless of how small the record actually was,\n     up to the 100-entry queue limit, exhausting memory on the endpoint.\n     - debian/patches/CVE-2026-54874.patch: copy only the received record into\n       a right-sized allocation and restore it on retrieval, leaving the live\n       read buffer in place, in ssl/d1_pkt.c, ssl/d1_lib.c and ssl/dtls1.h.\n     - CVE-2026-54874","modified":"2026-10-26T09:32:02.239043745Z","published":"2026-09-09T10:58:16Z","upstream":["CVE-2026-54874"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2026-1788951485.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54874"}],"affected":[{"package":{"name":"libssl-dev","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libssl-dev?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.2g-1ubuntu4.21+tuxcare.els17"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1788951485.json"}},{"package":{"name":"libssl-doc","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libssl-doc?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.2g-1ubuntu4.21+tuxcare.els17"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1788951485.json"}},{"package":{"name":"libssl1.0.0","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libssl1.0.0?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.2g-1ubuntu4.21+tuxcare.els17"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1788951485.json"}},{"package":{"name":"openssl","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/openssl?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.2g-1ubuntu4.21+tuxcare.els17"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1788951485.json"}}],"schema_version":"1.9.0"}