CVE-2019-15523
MEDIUMCVSS 5.3/10EPSS 1.31%
Last modified
CVE-2019-15523 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An issue was discovered in LINBIT csync2 through 2.0. It does not correctly check for the return value GNUTLS_E_WARNING_ALERT_RECEIVED of the gnutls_handshake() function. EPSS estimates a 1.31% chance of exploitation in the next 30 days.
Description
An issue was discovered in LINBIT csync2 through 2.0. It does not correctly check for the return value GNUTLS_E_WARNING_ALERT_RECEIVED of the gnutls_handshake() function. It neglects to call this function again, as required by the design of the API.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linbit | Csync2 | <= 2.0 |
| Debian | Debian Linux | 9.0 |
References
- https://github.com/LINBIT/csync2/pull/13/commits/92742544a56bcbcd9ec99ca15f898b31797e39e2Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/01/msg00003.htmlMailing List, Third Party Advisory
- https://github.com/LINBIT/csync2/pull/13/commits/92742544a56bcbcd9ec99ca15f898b31797e39e2Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/01/msg00003.htmlMailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-15523?
An issue was discovered in LINBIT csync2 through 2.0. It does not correctly check for the return value GNUTLS_E_WARNING_ALERT_RECEIVED of the gnutls_handshake() function. It neglects to call this function again, as required by the design of the API.
How severe is CVE-2019-15523?
CVE-2019-15523 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.31% probability of exploitation in the next 30 days.
How do I fix CVE-2019-15523?
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.
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Are you affected by CVE-2019-15523?
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Scan your code nowSource: NVD / NIST