A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform Resource Identifier (URI) or Service (SRV) Subject Alternative Names (SANs). This could cause the certificate validation process to incorrectly fall back to checking DNS hostnames against the Common Name (CN), potentially allowing the attacker to spoof legitimate services or intercept sensitive information.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 | Range not provided by sourceCNA affecteddefault affected | |
| Red Hat | Red Hat Enterprise Linux 9 | Range not provided by sourceCNA affecteddefault affected | |
| Red Hat | Red Hat OpenShift Container Platform 4 | All Versions ImpactedCNA affecteddefault affected | |
| Red Hat | Red Hat OpenShift Container Platform 4 | Range not provided by sourceCNA affecteddefault unknown | |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | Range not provided by sourceCNA affecteddefault affected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.