CVE-2020-17355 Denial of service in n/a
Remote attackers can cause a denial of service by sending malformed DHCP packets, leading to agent restarts in Arista EOS.
- 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-2020-17355?
CVE-2020-17355 is a high-severity denial of service vulnerability in n/a, published on 21 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 a denial of service (restart of agents) by crafting a malformed DHCP packet which leads to an incorrect route being installed.
Which versions are affected by CVE-2020-17355?
It affects 1 product.
Products include Arista Eos.
How do I fix CVE-2020-17355?
No fix has been published for CVE-2020-17355 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-2020-17355 being exploited?
There is no known exploitation of CVE-2020-17355 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-jp7j-xv2r-4c7j.