CVE-2019-11499
HIGHCVSS 7.5/10EPSS 2.53%
Last modified
CVE-2019-11499 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In the IMAP Server in Dovecot 2.3.3 through 2.3.5.2, the submission-login component crashes if AUTH PLAIN is attempted over a TLS secured channel with an unacceptable authentication message.. EPSS estimates a 2.53% chance of exploitation in the next 30 days.
Description
In the IMAP Server in Dovecot 2.3.3 through 2.3.5.2, the submission-login component crashes if AUTH PLAIN is attempted over a TLS secured channel with an unacceptable authentication message.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Dovecot | Dovecot | >= 2.3.3, <= 2.3.5.2 |
| Fedoraproject | Fedora | 29 |
| Fedoraproject | Fedora | 30 |
| Opensuse | Leap | 15.0 |
| Opensuse | Leap | 15.1 |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00024.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00026.htmlMailing List, Third Party Advisory
- https://www.dovecot.org/security.htmlVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00024.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00026.htmlMailing List, Third Party Advisory
- https://www.dovecot.org/security.htmlVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-11499?
In the IMAP Server in Dovecot 2.3.3 through 2.3.5.2, the submission-login component crashes if AUTH PLAIN is attempted over a TLS secured channel with an unacceptable authentication message.
How severe is CVE-2019-11499?
CVE-2019-11499 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.53% probability of exploitation in the next 30 days.
How do I fix CVE-2019-11499?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-11499?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST