CVE-2020-15897 Denial of service in n/a
Remote attackers can cause traffic loss or incorrect forwarding in Arista EOS devices by sending malformed IS-IS link-state PDUs.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-15897?
CVE-2020-15897 is a high-severity denial of service vulnerability in n/a, published on 26 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause traffic loss or incorrect forwarding of traffic via a malformed link-state PDU to the IS-IS router.
Which versions are affected by CVE-2020-15897?
It affects 1 product.
Products include Arista Eos.
How do I fix CVE-2020-15897?
No fix has been published for CVE-2020-15897 yet. Limit exposure of the affected software until one is available.
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-2020-15897 being exploited?
There is no known exploitation of CVE-2020-15897 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-9pm5-4php-6g34.