{"id":"UBUNTU-CVE-2025-54349","details":"In iperf before 3.19.1, iperf_auth.c has an off-by-one error and resultant heap-based buffer overflow.","modified":"2026-04-22T19:56:07.943525Z","published":"2025-08-03T02:15:00Z","related":["USN-7970-1"],"upstream":["CVE-2025-54349"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-54349"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-54349"},{"type":"REPORT","url":"https://github.com/esnet/iperf/commit/4e5313bab0b9b3fe03513ab54f722c8a3e4b7bdf"},{"type":"REPORT","url":"https://github.com/esnet/iperf/releases/tag/3.19.1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7970-1"}],"affected":[{"package":{"name":"iperf3","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/iperf3@3.7-3ubuntu0.1~esm2?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.7-3ubuntu0.1~esm2"}]}],"versions":["3.6-2","3.7-1","3.7-2","3.7-3","3.7-3ubuntu0.1~esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"iperf3","binary_version":"3.7-3ubuntu0.1~esm2"},{"binary_version":"3.7-3ubuntu0.1~esm2","binary_name":"libiperf0"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-54349.json"}},{"package":{"name":"iperf3","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/iperf3@3.9-1+deb11u1ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.9-1+deb11u1ubuntu0.1"}]}],"versions":["3.9-1","3.9-1build1","3.9-1+deb11u1build0.22.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.9-1+deb11u1ubuntu0.1","binary_name":"iperf3"},{"binary_version":"3.9-1+deb11u1ubuntu0.1","binary_name":"libiperf0"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-54349.json"}},{"package":{"name":"iperf3","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/iperf3@3.16-1ubuntu0.1~esm1?arch=source&distro=esm-apps/noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.16-1ubuntu0.1~esm1"}]}],"versions":["3.14-1","3.15-1","3.16-1","3.16-1build1","3.16-1build2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"3.16-1ubuntu0.1~esm1","binary_name":"iperf3"},{"binary_name":"libiperf0","binary_version":"3.16-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-54349.json"}},{"package":{"name":"iperf3","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/iperf3@3.18-2ubuntu0.1?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.18-2ubuntu0.1"}]}],"versions":["3.18-2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"iperf3","binary_version":"3.18-2ubuntu0.1"},{"binary_name":"libiperf0","binary_version":"3.18-2ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-54349.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}