CVE-2019-25076
openvswitch: DoS via crafted packet
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 9, 2022
Updated · June 28, 2026
Description
A flaw was found in the Tuple Space Search (TSS) algorithm in Open vSwitch 2.x through 2.17.2 and 3.0.0. This issue allows remote attackers to cause a denial of service via crafted packet data that requires excessive evaluation time within the packet classification algorithm for the MegaFlow cache (Tuple Space Explosion (TSE) attack).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
CWE-400 · Uncontrolled Resource Consumption