Vulnerability · Published Feb 22, 2024 · Assigned by redhat
CVE-2023-3966Openvswsitch: ovs-vswitch fails to recover after malformed geneve metadata packet
High 7.5
In plain English
A high-severity security flaw in Fedora from Fedora. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.3%top 30.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A flaw was found in Open vSwitch where multiple versions are vulnerable to crafted Geneve packets, which may result in a denial of service and invalid memory accesses. Triggering this issue requires that hardware offloading via the netlink path is enabled.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | openvswitch | 2.17.9-r0 | ALPINE-CVE-2023-3966 |
| Alpine:v3.21 | openvswitch | 2.17.9-r0 | ALPINE-CVE-2023-3966 |
| Alpine:v3.22 | openvswitch | 2.17.9-r0 | ALPINE-CVE-2023-3966 |
| Alpine:v3.23 | openvswitch | 2.17.9-r0 | ALPINE-CVE-2023-3966 |
| Alpine:v3.24 | openvswitch | 2.17.9-r0 | ALPINE-CVE-2023-3966 |
| Debian:12 | openvswitch | 3.1.0-2+deb12u1 | DSA-5640-1 |
| Debian:12 | openvswitch | 3.1.0-2+deb12u1 | DEBIAN-CVE-2023-3966 |
| Debian:13 | openvswitch | 3.3.0-1 | DEBIAN-CVE-2023-3966 |
| Debian:14 | openvswitch | 3.3.0-1 | DEBIAN-CVE-2023-3966 |
| Ubuntu:22.04:LTS | openvswitch | 2.17.9-0ubuntu0.22.04.1 | UBUNTU-CVE-2023-3966 |
| Ubuntu:22.04:LTS | openvswitch | 2.17.9-0ubuntu0.22.04.1 | USN-6690-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | openvswitch | see references |
| Red Hat | Fast Datapath for RHEL 7 | see references |
| Red Hat | Fast Datapath for RHEL 7 | see references |
| Red Hat | Fast Datapath for RHEL 7 | see references |
| Red Hat | Fast Datapath for RHEL 7 | see references |
| Red Hat | Fast Datapath for RHEL 7 | see references |
| Red Hat | Fast Datapath for RHEL 8 | see references |
| Red Hat | Fast Datapath for RHEL 8 | see references |
| Red Hat | Fast Datapath for RHEL 8 | see references |
| Red Hat | Fast Datapath for RHEL 8 | see references |
| Red Hat | Fast Datapath for RHEL 8 | see references |
| Red Hat | Fast Datapath for RHEL 8 | see references |
| Red Hat | Fast Datapath for RHEL 8 | see references |
| Red Hat | Fast Datapath for RHEL 9 | see references |
| Red Hat | Fast Datapath for RHEL 9 | see references |
| Red Hat | Fast Datapath for RHEL 9 | see references |
| Red Hat | Fast Datapath for RHEL 9 | see references |
| Red Hat | Red Hat Enterprise Linux 7 | see references |
| Red Hat | Red Hat OpenShift Container Platform 3.11 | see references |
| RDO | OpenStack RDO | see references |
| Fedora | Fedora | see references |
Weakness: CWE-248 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://access.redhat.com/security/cve/CVE-2023-3966 vdb-entry, x_refsource_REDHAT
- RHBZ#2178363 issue-tracking, x_refsource_REDHAT
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VYYUBF6OW2JG7VOFEOROHXGSJCTES3QO/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LFZADABUDOFI2KZIRQBYFZCIKH55RGY3/