CVE-2019-19269
mediumpriority · track · 21EPSS 0.016 · 76 %ileEURUUSEPSS · scored 2026-10-27
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.
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 · 4–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (26)
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 (23)
External citations — patches, advisories, analysis.
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00009.htmlcnnvd
- https://github.com/proftpd/proftpd/issues/861cnnvd
- https://lists.debian.org/debian-lts-announce/2019/11/msg00039.htmlcnnvd
- 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-2019-19269cnnvd
- https://packetstormsecurity.com/files/156768/Gentoo-Linux-Security-Advisory-202003-35.htmlcnnvd
- https://vigilance.fr/vulnerability/ProFTPD-NULL-pointer-dereference-via-sk-X509-REVOKED-value-tls-verify-crl-31010cnnvd
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