{"id":"UBUNTU-CVE-2024-45237","details":"An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a resource certificate containing a Key Usage extension composed of more than two bytes of data. Fort writes this string into a 2-byte buffer without properly sanitizing its length, leading to a buffer overflow.","modified":"2026-02-04T02:48:47.623777Z","published":"2024-08-24T23:15:00Z","related":["USN-7813-1"],"upstream":["CVE-2024-45237"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-45237"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2024-45237"},{"type":"REPORT","url":"https://nicmx.github.io/FORT-validator/CVE.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7813-1"}],"affected":[{"package":{"name":"fort-validator","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/fort-validator@1.2.0-1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.0-1ubuntu0.1~esm1"}]}],"versions":["1.1.1-2","1.1.2-1","1.1.3-1","1.2.0-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.2.0-1ubuntu0.1~esm1","binary_name":"fort-validator"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-45237.json"}},{"package":{"name":"fort-validator","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/fort-validator@1.5.3-1ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.3-1ubuntu0.1"}]}],"versions":["1.5.1-1","1.5.2-1","1.5.3-1","1.5.3-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.5.3-1ubuntu0.1","binary_name":"fort-validator"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-45237.json"}},{"package":{"name":"fort-validator","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/fort-validator@1.6.1-1ubuntu0.1~esm2?arch=source&distro=esm-apps/noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.1-1ubuntu0.1~esm2"}]}],"versions":["1.5.4-1","1.6.1-1","1.6.1-1build2","1.6.1-1build3"],"ecosystem_specific":{"binaries":[{"binary_version":"1.6.1-1ubuntu0.1~esm2","binary_name":"fort-validator"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-45237.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}