CVE-2019-25076 Denial of service in n/a
Remote attackers can cause denial of service in Open vSwitch by sending crafted packets that trigger excessive evaluation time in the Tuple Space Search algorithm.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-25076?
CVE-2019-25076 is a medium-severity denial of service vulnerability in n/a, published on 8 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The TSS (Tuple Space Search) algorithm in Open vSwitch 2.x through 2.17.2 and 3.0.0 allows remote attackers to cause a denial of service (delays of legitimate traffic) via crafted packet data that requires excessive evaluation time within the packet classification algorithm for the MegaFlow cache, aka a Tuple Space Explosion (TSE) attack.
Which versions are affected by CVE-2019-25076?
It affects 1 product.
Products include Openvswitch Openvswitch.
How do I fix CVE-2019-25076?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-25076 being exploited?
There is no known exploitation of CVE-2019-25076 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as AZL-10905, DEBIAN-CVE-2019-25076, GHSA-8ch8-jcmf-3gj4, UBUNTU-CVE-2019-25076.