Description (CNA)
A flaw was found in Open vSwitch. When Open vSwitch is configured with a conntrack flow using FTP helpers over the userspace datapath, a remote attacker can send a specially crafted FTP stream with an EPASV command exceeding 255 characters. This heap access error can lead to a crash, resulting in a Denial of Service (DoS) for the affected system.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / Fast Datapath for RHEL 7 | affected |
| Red Hat / Fast Datapath for RHEL 7 | affected |
| Red Hat / Fast Datapath for RHEL 7 | affected |
| Red Hat / Fast Datapath for RHEL 7 | affected |
| Red Hat / Fast Datapath for RHEL 7 | affected |
| Red Hat / Fast Datapath for RHEL 7 | affected |
| Red Hat / Fast Datapath for RHEL 7 | affected |
| Red Hat / Fast Datapath for RHEL 7 | affected |
| Red Hat / Fast Datapath for RHEL 8 | affected |
| Red Hat / Fast Datapath for RHEL 8 | affected |
| Red Hat / Fast Datapath for RHEL 8 | affected |
| Red Hat / Fast Datapath for RHEL 8 | affected |
| Red Hat / Fast Datapath for RHEL 8 | affected |
| Red Hat / Fast Datapath for RHEL 8 | affected |
| Red Hat / Fast Datapath for RHEL 8 | affected |
| Red Hat / Fast Datapath for RHEL 8 | affected |
| Red Hat / Fast Datapath for RHEL 8 | affected |
| Red Hat / Fast Datapath for RHEL 8 | affected |
| Red Hat / Fast Datapath for RHEL 9 | affected |
| Red Hat / Fast Datapath for RHEL 9 | affected |
| Red Hat / Fast Datapath for RHEL 9 | affected |
| Red Hat / Fast Datapath for RHEL 9 | affected |
| Red Hat / Fast Datapath for RHEL 9 | affected |
| Red Hat / Fast Datapath for RHEL 9 | affected |
| Red Hat / Fast Datapath for RHEL 9 | affected |
| Red Hat / Fast Datapath for RHEL 9 | affected |
| Red Hat / Fast Datapath for RHEL 9 | affected |
| Red Hat / Red Hat Enterprise Linux 7 | affected |
| Red Hat / Red Hat OpenShift Container Platform 4 | affected |
| Red Hat / Red Hat OpenShift Container Platform 4 | affected |
| Red Hat / Red Hat OpenShift Container Platform 4 | affected |
| Red Hat / Red Hat OpenShift Container Platform 4 | affected |
| Red Hat / Red Hat OpenShift Container Platform 4 | affected |
| Red Hat / Red Hat OpenStack Platform 13 (Queens) | affected |
| Red Hat / Red Hat OpenStack Platform 13 (Queens) | affected |
| Red Hat / Red Hat OpenStack Platform 13 (Queens) | affected |
| Red Hat / Red Hat OpenStack Platform 16.2 | affected |
| Red Hat / Red Hat OpenStack Platform 16.2 | affected |
| Red Hat / Red Hat OpenStack Platform 17.1 | affected |
| Red Hat / Red Hat OpenStack Platform 17.1 | affected |
| Red Hat / Red Hat OpenStack Platform 18.0 | affected |
CWE
CWE-120
References
- https://access.redhat.com/security/cve/CVE-2026-34956
- https://bugzilla.redhat.com/show_bug.cgi?id=2453459
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.