UBUNTU-CVE-2019-19269
Advisory lineage Upstream: 1 Downstream: 0
Upstream
Published: 30 Nov 2019, 23:15
Last modified:20 May 2026, 16:03
Vulnerability Summary
Overall Risk (default)
low
20/100 CVSS Score
4.9 MEDIUM
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
30 Nov 2019, 23:15
Published
Vulnerability first disclosed
20 May 2026, 16:03
Last Modified
Vulnerability information updated
Description
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 Metrics
- v3.1•MEDIUM•Score: 4.9CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Affected Systems
- ubuntu•proftpd-dfsg
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