An issue exists in tls_verify_crl in ProFTPD up to and including 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.
Vulnerable Product | Search on Vulmon | Subscribe to Product |
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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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debian debian linux 8.0 |