What is CVE-2019-11497?

CVE-2019-11497 is a high-severity vulnerability in Couchbase Server, classified under Improper Certificate Validation. CVSS score: 7.5/10. Published 2019-09-10.

How severe is CVE-2019-11497?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Couchbase Server

CVE-2019-11497

In Couchbase Server 5.0.0, when an invalid Remote Cluster Certificate was entered as part of the reference creation, XDCR did not parse and check the certificate signature. It then accepted the invalid certificate and attempted to use it to establish future connections to the remote cluster. This has been fixed in version 5.5.0. XDCR now checks the validity of the certificate thoroughly and prevents a remote cluster reference from being created with an invalid certificate.

Vulnerability class: Improper Certificate Validation

EPSS: 0.007 (48.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Couchbase Couchbase_server — versions 5.0.0
N/a — versions n/a

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2019-11497?: CVE-2019-11497 is a high-severity vulnerability in Couchbase Server, classified under Improper Certificate Validation. CVSS score: 7.5/10. Published 2019-09-10.
How severe is CVE-2019-11497?: High severity. CVSS v3 base score is 7.5 out of 10.