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CVE-2019-19269

nvd nist
Published: Nov 30, 2019Modified: Jun 17, 2026

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4.9
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Exploitability: 1.2 / Impact: 3.6
Source: NVD

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.

Affected (11)

Proftpd
1 product
Proftpd
Fedoraproject
1 product
Fedora
Debian
1 product
Debian Linux
Configuration A
8 vulnerable
Vulnerable SoftwareAffected Versions
Proftpd
Proftpd
Up to 1.3.5e
Proftpd
Version 1.3.6
Proftpd
Version 1.3.6 alpha
Proftpd
Version 1.3.6 beta
Proftpd
Version 1.3.6 rc1
Proftpd
Version 1.3.6 rc2
Proftpd
Version 1.3.6 rc3
Proftpd
Version 1.3.6 rc4
Configuration B
2 vulnerable
Vulnerable SoftwareAffected Versions
Fedoraproject
Fedora
Version 30
Fedora
Version 31
Configuration C
1 vulnerable
Vulnerable SoftwareAffected Versions
Debian Linux
Version 8.0

Related CWEs

CWE-476
NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.

References (14)

Source: cve@mitre.org
Source: cve@mitre.org
PatchThird Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.