{"id":"CLSA-2026-1786720463","summary":"Fix CVE(s): CVE-2024-56337","details":"   * SECURITY UPDATE: fix for the following CVEs:\n     - CVE-2024-56337: incomplete mitigation of CVE-2024-50379 — the JVM\n       global canonical file name cache (sun.io.useCanonCaches) could still\n       return a stale answer for a concurrently written path, leaving the\n       TOCTOU race during JSP compilation exploitable on case-insensitive\n       file systems with a write-enabled Default Servlet. DirResourceSet\n       now verifies at startup that the cache is disabled, disabling it\n       reflectively where possible and refusing to start the potentially\n       vulnerable web application otherwise; new Jre12Compat and\n       Jre21Compat tiers implement the per-JRE detection, and catalina.sh\n       sets -Dsun.io.useCanonCaches=false before the JVM caches it.","modified":"2026-10-26T09:43:27.498269853Z","published":"2026-08-14T15:14:34Z","upstream":["CVE-2024-50379","CVE-2024-56337"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu20.04els/CLSA-2026-1786720463.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-56337"}],"affected":[{"package":{"name":"libtomcat9-embed-java","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/libtomcat9-embed-java?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.31-1ubuntu0.9+tuxcare.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json"}},{"package":{"name":"libtomcat9-java","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/libtomcat9-java?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.31-1ubuntu0.9+tuxcare.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json"}},{"package":{"name":"tomcat9","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/tomcat9?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.31-1ubuntu0.9+tuxcare.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json"}},{"package":{"name":"tomcat9-admin","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/tomcat9-admin?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.31-1ubuntu0.9+tuxcare.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json"}},{"package":{"name":"tomcat9-common","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/tomcat9-common?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.31-1ubuntu0.9+tuxcare.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json"}},{"package":{"name":"tomcat9-docs","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/tomcat9-docs?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.31-1ubuntu0.9+tuxcare.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json"}},{"package":{"name":"tomcat9-examples","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/tomcat9-examples?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.31-1ubuntu0.9+tuxcare.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json"}},{"package":{"name":"tomcat9-user","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/tomcat9-user?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.31-1ubuntu0.9+tuxcare.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1786720463.json"}}],"schema_version":"1.9.0"}