8.6Alta
CVE-2026-5367Ovn: ovn: information disclosure via crafted dhcpv6 packets
Descripción
A flaw was found in OVN (Open Virtual Network). A remote attacker, by sending crafted DHCPv6 (Dynamic Host Configuration Protocol for IPv6) SOLICIT packets with an inflated Client ID length, could cause the ovn-controller to read beyond the bounds of a packet. This out-of-bounds read can lead to the disclosure of sensitive information stored in heap memory, which is then returned to the attacker's virtual machine port.
Debilidad (CWE):
CWE-130
Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.
Productos y versiones afectados
| Fabricante | Producto | Versiones | |
|---|---|---|---|
| enterprise linux | 10 | — | |
| enterprise linux | 8 | — | |
| enterprise linux | 9 | — | |
| Red Hat | Fast Datapath for Red Hat Enterprise Linux 10 | all versions | |
| Red Hat | Fast Datapath for Red Hat Enterprise Linux 8 | all versions | |
| Red Hat | Fast Datapath for Red Hat Enterprise Linux 9 | all versions | |
| Red Hat | Fast Datapath for RHEL 8 | all versions | |
| Red Hat | Fast Datapath for RHEL 9 | all versions | |
| Red Hat | Red Hat OpenShift Container Platform 4 | all versions |
Referencias y parches
- RHSA-2026:11694 vendor-advisory
- RHSA-2026:11695 vendor-advisory
- RHSA-2026:11696 vendor-advisory
- RHSA-2026:11698 vendor-advisory
- RHSA-2026:11700 vendor-advisory
- RHSA-2026:11701 vendor-advisory
- RHSA-2026:11702 vendor-advisory
- RHSA-2026:22110 vendor-advisory
- RHSA-2026:22111 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-5367 vdb-entry
- RHBZ#2455863 issue-tracking
- http://www.openwall.com/lists/oss-security/2026/04/20/3
- http://www.openwall.com/lists/oss-security/2026/04/20/5
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5367.json