An issue was discovered in tls_verify_crl in ProFTPD through 1.3.6b.
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-295.
Summary
An issue was discovered in tls_verify_crl in ProFTPD through 1.3.6b. Failure to check for the appropriate field of a CRL entry (checking twice for subject, rather than once for subject and once for issuer) prevents some valid CRLs from being taken into account, and can allow clients whose certificates have been revoked to proceed with a connection to the server.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:* | up to 1.3.5 | Vulnerable | ProFTPD |
| cpe:2.3:a:proftpd:proftpd:1.3.6:-:*:*:*:*:*:* | 1.3.6 | Vulnerable | ProFTPD |
| cpe:2.3:a:proftpd:proftpd:1.3.6:alpha:*:*:*:*:*:* | 1.3.6 alpha | Vulnerable | ProFTPD |
| cpe:2.3:a:proftpd:proftpd:1.3.6:beta:*:*:*:*:*:* | 1.3.6 beta | Vulnerable | ProFTPD |
| cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* | 30 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | 31 | Vulnerable | Fedoraproject |
- cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:* Versions up to 1.3.5 Vulnerable ·ProFTPD
- cpe:2.3:a:proftpd:proftpd:1.3.6:-:*:*:*:*:*:* Versions 1.3.6 Vulnerable ·ProFTPD
- cpe:2.3:a:proftpd:proftpd:1.3.6:alpha:*:*:*:*:*:* Versions 1.3.6 alpha Vulnerable ·ProFTPD
- cpe:2.3:a:proftpd:proftpd:1.3.6:beta:*:*:*:*:*:* Versions 1.3.6 beta Vulnerable ·ProFTPD
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2019-19270
- 2026-10-03 Alias added: GHSA-5pjj-3qp3-rjg3
References
Sources
- CVE-2019-19270 · CVE Program
- CVE-2019-19270 · NVD
- FIRST EPSS
- GHSA-5pjj-3qp3-rjg3 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-19270 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences