An issue exists in tls_verify_crl in ProFTPD up to and including 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once for issuer) prevents some valid CRLs from being taken into account, and can allow clients whose certificates have been revoked to proceed with a connection to the server.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
proftpd proftpd 1.3.6 |
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proftpd proftpd |
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fedoraproject fedora 30 |
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fedoraproject fedora 31 |
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