CVE-2019-19271

HIGH

ProFTPD < 1.3.6 - Certificate Revocation List Bypass via Incorrect Iteration Variable

Title source: llm
STIX 2.1

Description

An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. A wrong iteration variable, used when checking a client certificate against CRL entries (installed by a system administrator), can cause some CRL entries to be ignored, and can allow clients whose certificates have been revoked to proceed with a connection to the server.

References (1)

Core 1
Core References
Patch, Third Party Advisory x_refsource_misc
https://github.com/proftpd/proftpd/issues/860

Scores

CVSS v3 7.5
EPSS 0.0112
EPSS Percentile 62.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Details

CWE
CWE-295
Status published
Products (1)
proftpd/proftpd < 1.3.6
Published Nov 26, 2019
Tracked Since Feb 18, 2026