{"id":"UBUNTU-CVE-2021-38425","details":"eProsima Fast DDS versions prior to 2.4.0 (#2269) are susceptible to exploitation when an attacker sends a specially crafted packet to flood a target device with unwanted traffic, which may result in a denial-of-service condition and information exposure.","modified":"2026-04-22T14:55:35.231874Z","published":"2022-05-05T17:15:00Z","related":["USN-6306-1"],"upstream":["CVE-2021-38425"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-38425"},{"type":"REPORT","url":"https://github.com/eProsima/Fast-DDS/issues/2267"},{"type":"REPORT","url":"https://github.com/eProsima/Fast-DDS/pull/2269"},{"type":"REPORT","url":"https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6306-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-38425"}],"affected":[{"package":{"name":"fastdds","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/fastdds@2.5.0+ds-3ubuntu0.1~esm1?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.0+ds-3ubuntu0.1~esm1"}]}],"versions":["2.1.0+ds-9","2.4.1+ds-1","2.5.0+ds-3"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"fastdds-tools","binary_version":"2.5.0+ds-3ubuntu0.1~esm1"},{"binary_name":"libfastrtps2.5","binary_version":"2.5.0+ds-3ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-38425.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}