CVE-2019-5527 Use after free in ESXi, Workstation, Fusion, VMRC and Horizon Client
A use-after-free in the virtual sound device allows attackers to execute code or escalate privileges in VMware virtualization products.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-5527?
CVE-2019-5527 is a high-severity use after free vulnerability in Vmware Esxi, published on 10 Oct 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ESXi, Workstation, Fusion, VMRC and Horizon Client contain a use-after-free vulnerability in the virtual sound device. VMware has evaluated the severity of this issue to be in the Important severity range with a maximum CVSSv3 base score of 8.5.
Weakness: CWE-416
Which versions are affected by CVE-2019-5527?
It affects 5 products.
Products include Vmware Esxi, Vmware Fusion, Vmware Horizon, Vmware Remote Console, Vmware Workstation.
How do I fix CVE-2019-5527?
No fix has been published for CVE-2019-5527 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2019-5527 being exploited?
There is no known exploitation of CVE-2019-5527 in the wild and no public exploit code.
Other vulnerabilities in Vmware Esxi
Sources
Also known as GHSA-r6hj-459q-h63h.