CVE-2019-19270
mediumpriority · track · 30EPSS 0.011 · 66 %ileEURUUSEPSS · scored 2026-10-27
An issue was discovered in tls_verify_crl in ProFTPD through 1.3.6b. Failure to check for the appropriate field of a CRL entry (checking twice for subject, rather than once for subject and once for issuer) prevents some valid CRLs from being taken into account, and can allow clients whose certificates have been revoked to proceed with a connection to the server.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (18)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (14)
External citations — patches, advisories, analysis.
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00009.htmlcnnvd
- https://github.com/proftpd/proftpd/issues/859cnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OGBBCPLJSDPFG5EI5P5G7P4KEX7YSD5G/cnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QR65XUHPCRU3NXTSFVF2J4GWRIHC7AHW/cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2019-19270cnnvd
- https://vigilance.fr/vulnerability/ProFTPD-privilege-escalation-via-CRL-Entry-Revoked-Certificates-tls-verify-crl-31008cnnvd
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00009.htmlenisa_euvd
- https://github.com/proftpd/proftpd/issues/859enisa_euvd
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