{"id":"CLSA-2026-1791558713","summary":"Fix CVE(s): CVE-2026-73636, CVE-2026-73637","details":"   * SECURITY UPDATE: one-time nonce replay and use-after-free in\n     mod_auth_digest\n     - debian/patches/CVE-2026-73636_CVE-2026-73637.patch: accept a\n       one-time nonce or nonce-count only when it is newer than the one\n       last recorded for the client, and send a stale challenge when the\n       client entry is no longer known, in client_update_nonce() called\n       from check_and_record_nonce(); access client entries only while\n       holding client_lock, in modules/aaa/mod_auth_digest.c.\n       AuthDigestQop now accepts only \"auth\", and requests without\n       qop=auth are rejected.\n     - CVE-2026-73636\n     - CVE-2026-73637","modified":"2026-10-26T09:32:02.233974041Z","published":"2026-10-09T15:12:04Z","upstream":["CVE-2026-73636","CVE-2026-73637"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2026-1791558713.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73636"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73637"}],"affected":[{"package":{"name":"apache2","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/apache2?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.4.18-2ubuntu3.17+tuxcare.els28"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1791558713.json"}},{"package":{"name":"apache2-bin","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/apache2-bin?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.4.18-2ubuntu3.17+tuxcare.els28"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1791558713.json"}},{"package":{"name":"apache2-data","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/apache2-data?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.4.18-2ubuntu3.17+tuxcare.els28"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1791558713.json"}},{"package":{"name":"apache2-dev","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/apache2-dev?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.4.18-2ubuntu3.17+tuxcare.els28"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1791558713.json"}},{"package":{"name":"apache2-doc","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/apache2-doc?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.4.18-2ubuntu3.17+tuxcare.els28"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1791558713.json"}},{"package":{"name":"apache2-suexec-custom","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/apache2-suexec-custom?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.4.18-2ubuntu3.17+tuxcare.els28"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1791558713.json"}},{"package":{"name":"apache2-suexec-pristine","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/apache2-suexec-pristine?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.4.18-2ubuntu3.17+tuxcare.els28"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1791558713.json"}},{"package":{"name":"apache2-utils","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/apache2-utils?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.4.18-2ubuntu3.17+tuxcare.els28"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1791558713.json"}}],"schema_version":"1.9.0"}