{"id":"UBUNTU-CVE-2019-9689","details":"process_certificate in tls1.c in Cameron Hamilton-Rich axTLS through 2.1.5 has a Buffer Overflow via a crafted TLS certificate handshake message with zero certificates.","modified":"2026-04-22T12:23:53.969619Z","published":"2019-12-03T20:15:00Z","upstream":["CVE-2019-9689"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-9689"},{"type":"REPORT","url":"http://axtls.sourceforge.net"},{"type":"REPORT","url":"http://packetstormsecurity.com/files/155500/axTLS-2.1.5-Denial-Of-Service.html"},{"type":"REPORT","url":"https://seclists.org/bugtraq/2019/Nov/44"},{"type":"REPORT","url":"https://www.telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842"},{"type":"REPORT","url":"https://www.telekom.com/resource/blob/586428/51ae062269fbcb068bd20379f87f1398/dl-191121-critical-remote-denial-of-service-vulnerability-ii--data.pdf"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-9689"}],"affected":[{"package":{"name":"axtls","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/axtls@2.1.5+ds-1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.5+ds-1"],"ecosystem_specific":{"binaries":[{"binary_name":"axhttpd","binary_version":"2.1.5+ds-1"},{"binary_name":"libaxtls1","binary_version":"2.1.5+ds-1"},{"binary_version":"2.1.5+ds-1","binary_name":"libaxtlsp-perl"},{"binary_name":"lua-axtlsl","binary_version":"2.1.5+ds-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-9689.json"}},{"package":{"name":"axtls","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/axtls@2.1.5+ds-1build2?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.5+ds-1build1","2.1.5+ds-1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"axhttpd","binary_version":"2.1.5+ds-1build2"},{"binary_name":"libaxtls1","binary_version":"2.1.5+ds-1build2"},{"binary_name":"libaxtlsp-perl","binary_version":"2.1.5+ds-1build2"},{"binary_name":"lua-axtlsl","binary_version":"2.1.5+ds-1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-9689.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":"Ubuntu","score":"medium"}]}