CVE-2023-20896 Denial of service in VMware Cloud Foundation (vCenter Server)
A remote attacker can cause denial of service in specific vCenter services by sending a specially crafted packet exploiting an out-of-bounds read.
- 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-2023-20896?
CVE-2023-20896 is a medium-severity denial of service vulnerability in Vmware Vcenter Server, published on 22 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The VMware vCenter Server contains an out-of-bounds read vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger an out-of-bounds read by sending a specially crafted packet leading to denial-of-service of certain services (vmcad, vmdird, and vmafdd).
Weakness: CWE-125
Which versions are affected by CVE-2023-20896?
It affects 1 product.
Products include Vmware Vcenter Server.
How do I fix CVE-2023-20896?
No fix has been published for CVE-2023-20896 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-2023-20896 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-20896 exists.
Other vulnerabilities in Vmware Vcenter Server
Sources
Also known as GHSA-fm8c-6m3x-v3rf.