{"id":"CVE-2019-19269","details":"An issue was discovered in tls_verify_crl in ProFTPD through 1.3.6b. A dereference of a NULL pointer may occur. This pointer is returned by the OpenSSL sk_X509_REVOKED_value() function when encountering an empty CRL installed by a system administrator. The dereference occurs when validating the certificate of a client connecting to the server in a TLS client/server mutual-authentication setup.","modified":"2026-08-07T11:31:01.186250279Z","published":"2019-11-30T23:15:18.223Z","related":["openSUSE-SU-2020:0031-1","openSUSE-SU-2024:11196-1"],"database_specific":{"unresolved_ranges":[{"extracted_events":[{"introduced":"8.0"},{"last_affected":"8.0"}],"source":"CPE_STRING","vendor_product":"debian:debian_linux","cpes":["cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"]},{"cpes":["cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"30"},{"last_affected":"30"},{"introduced":"31"},{"last_affected":"31"}],"source":"CPE_STRING","vendor_product":"fedoraproject:fedora"},{"vendor_product":"proftpd:proftpd","cpes":["cpe:2.3:a:proftpd:proftpd:1.3.6:alpha:*:*:*:*:*:*","cpe:2.3:a:proftpd:proftpd:1.3.6:beta:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.3.6-alpha"},{"last_affected":"1.3.6-alpha"},{"introduced":"1.3.6-beta"},{"last_affected":"1.3.6-beta"}],"source":"CPE_STRING"}]},"references":[{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00009.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OGBBCPLJSDPFG5EI5P5G7P4KEX7YSD5G/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QR65XUHPCRU3NXTSFVF2J4GWRIHC7AHW/"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuapr2020.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2019/11/msg00039.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202003-35"},{"type":"FIX","url":"https://github.com/proftpd/proftpd/issues/861"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/proftpd/proftpd","events":[{"introduced":"0"},{"last_affected":"46a4c089eec7dfc9b7c168c98bdb06371eb694ef"},{"introduced":"14f155e2f194f75d05a1656d13f4228257ba3091"},{"last_affected":"e280a27aae2b8ee5266abec70992cbb607c1bc20"}],"database_specific":{"source":["CPE_RANGE","CPE_STRING"],"cpe":["cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:*","cpe:2.3:a:proftpd:proftpd:1.3.6:-:*:*:*:*:*:*","cpe:2.3:a:proftpd:proftpd:1.3.6:rc1:*:*:*:*:*:*","cpe:2.3:a:proftpd:proftpd:1.3.6:rc2:*:*:*:*:*:*","cpe:2.3:a:proftpd:proftpd:1.3.6:rc3:*:*:*:*:*:*","cpe:2.3:a:proftpd:proftpd:1.3.6:rc4:*:*:*:*:*:*"],"extracted_events":[{"introduced":"0"},{"last_affected":"1.3.5e"},{"introduced":"1.3.6-NA"},{"last_affected":"1.3.6-NA"},{"introduced":"1.3.6-rc1"},{"last_affected":"1.3.6-rc1"},{"introduced":"1.3.6-rc2"},{"last_affected":"1.3.6-rc2"},{"introduced":"1.3.6-rc3"},{"last_affected":"1.3.6-rc3"},{"introduced":"1.3.6-rc4"},{"last_affected":"1.3.6-rc4"}]}}],"versions":["1.3.6-NA","1.3.6-rc1","1.3.6-rc2","1.3.6-rc3","1.3.6-rc4","v1.3.5e","v1.3.5d","v1.3.6rc4","v1.3.5c","v1.3.6rc3","v1.3.5b","v1.3.6rc2","v1.3.5a","v1.3.6rc1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19269.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"}]}