Vulnerability · Published Jun 2, 2021 · Assigned by redhat
CVE-2021-3499
Medium 5.6
In plain English
A medium-severity incorrect authorization in openshift/ovn-kubernetes. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities).
Severity (CVSS NVD)5.6Medium
Exploit odds (30 days)0.8%top 43.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A vulnerability was found in OVN Kubernetes in versions up to and including 0.3.0 where the Egress Firewall does not reliably apply firewall rules when there is multiple DNS rules. It could lead to potentially lose of confidentiality, integrity or availability of a service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/ovn-org/ovn-kubernetes | no fix listed | GHSA-57v4-m9jx-mh8r |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | openshift/ovn-kubernetes | All ovn-kubernetes versions up to and including 0.3.0 |
Weakness: CWE-863
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1949188 x_refsource_MISC