{"id":"USN-8430-1","summary":"adsys vulnerabilities","details":"It was discovered that ADSys did not properly handle certain HTTP/2 frames.\nA remote attacker could possibly use this issue to cause a denial of\nservice. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-27141)\n\nIt was discovered that ADSys did not properly handle certain HTTP/2\nSETTINGS frames. A remote attacker could possibly use this issue to cause a\ndenial of service. (CVE-2026-33814)","modified":"2026-06-16T05:14:18.005568331Z","published":"2026-06-15T16:19:26Z","related":["UBUNTU-CVE-2026-27141","UBUNTU-CVE-2026-33814"],"upstream":["CVE-2026-27141","CVE-2026-33814","UBUNTU-CVE-2026-27141","UBUNTU-CVE-2026-33814"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8430-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-27141"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-33814"}],"affected":[{"package":{"name":"adsys","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/adsys?arch=source&distro=esm-infra%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.2~20.04.2ubuntu0.1+esm2"}]}],"versions":["0.8~22.04","0.9.2~20.04","0.9.2~20.04.1","0.9.2~20.04.2","0.9.2~20.04.2ubuntu0.1","0.9.2~20.04.2ubuntu0.1+esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"adsys","binary_version":"0.9.2~20.04.2ubuntu0.1+esm2"},{"binary_name":"adsys-windows","binary_version":"0.9.2~20.04.2ubuntu0.1+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8430-1.json","cves_map":{"cves":[{"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:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-33814"}],"ecosystem":"Ubuntu:Pro:20.04:LTS"}}},{"package":{"name":"adsys","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/adsys?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.16.3~22.04.2ubuntu0.22.04.1"}]}],"versions":["0.7.1","0.7.1build1","0.8","0.8ubuntu1","0.8.1","0.8.2","0.8.3","0.8.4","0.8.5~22.04","0.9.2~22.04","0.9.2~22.04.1","0.9.2~22.04.2","0.14.1~22.04","0.14.2~22.04","0.14.2~22.04ubuntu0.1","0.14.3~22.04","0.14.3~22.04ubuntu0.1","0.16.3~22.04.1","0.16.3~22.04.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"adsys","binary_version":"0.16.3~22.04.2ubuntu0.22.04.1"},{"binary_name":"adsys-windows","binary_version":"0.16.3~22.04.2ubuntu0.22.04.1"}]},"database_specific":{"cves_map":{"cves":[{"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:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-33814"}],"ecosystem":"Ubuntu:22.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8430-1.json"}},{"package":{"name":"adsys","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/adsys?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.16.3~24.04.2ubuntu0.24.04.1"}]}],"versions":["0.13.1","0.13.2","0.13.3","0.14.1","0.14.1build1","0.14.1ubuntu0.24.04.1","0.14.2~24.04","0.14.2~24.04ubuntu0.1","0.14.3~24.04","0.14.3~24.04ubuntu0.1","0.16.3~24.04.1","0.16.3~24.04.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"adsys","binary_version":"0.16.3~24.04.2ubuntu0.24.04.1"},{"binary_name":"adsys-windows","binary_version":"0.16.3~24.04.2ubuntu0.24.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8430-1.json","cves_map":{"ecosystem":"Ubuntu:24.04:LTS","cves":[{"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:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-33814"}]}}},{"package":{"name":"adsys","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/adsys?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.16.3ubuntu0.25.10.2"}]}],"versions":["0.16.3","0.16.3ubuntu0.25.10.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"adsys","binary_version":"0.16.3ubuntu0.25.10.2"},{"binary_name":"adsys-windows","binary_version":"0.16.3ubuntu0.25.10.2"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:25.10","cves":[{"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:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-33814"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8430-1.json"}},{"package":{"name":"adsys","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/adsys?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.16.4ubuntu1.1"}]}],"versions":["0.16.3","0.16.3ubuntu1","0.16.4","0.16.4ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"adsys","binary_version":"0.16.4ubuntu1.1"},{"binary_name":"adsys-windows","binary_version":"0.16.4ubuntu1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8430-1.json","cves_map":{"ecosystem":"Ubuntu:26.04:LTS","cves":[{"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":"Ubuntu","score":"medium"}],"id":"CVE-2026-27141"},{"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:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-33814"}]}}}],"schema_version":"1.7.5"}