Openvswitch: open vswitch: denial of service via malformed ftp epasv command
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.9epss 0.4%
exploitation probability
0.4%top 65% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Red Hat · Fast Datapath for RHEL 7Red Hat · Fast Datapath for RHEL 8Red Hat · Fast Datapath for RHEL 9Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat OpenShift Container Platform 4Red Hat · Red Hat OpenStack Platform 13 (Queens)Red Hat · Red Hat OpenStack Platform 16.2Red Hat · Red Hat OpenStack Platform 17.1Red Hat · Red Hat OpenStack Platform 18.0