#VU21241 Use-after-free in VMware, Inc products - CVE-2019-5527

Vulnerability identifier: #VU21241

Vulnerability risk: Medium

CVSSv4.0: 6.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-5527

CWE-ID: CWE-416

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
VMRC
Client/Desktop applications / Software for system administration
VMware Horizon Client
Client/Desktop applications / Software for system administration
VMware Fusion
Client/Desktop applications / Virtualization software
VMware Workstation
Client/Desktop applications / Virtualization software
VMware ESXi
Operating systems & Components / Operating system

Vendor: VMware, Inc

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in the virtual sound device. A local unprivileged user with access to guest operating system can trigger use-after-free error and execute arbitrary code on the host OS.

Successful exploitation of the vulnerability requires that the sound back-end is not connected.

Mitigation

Vulnerable software versions

VMRC: 10.0.0 - 10.0.4

VMware Horizon Client: 5.0.0 - 5.1.0

VMware Fusion: 11.0.0 - 11.1.1

VMware Workstation: 15.0.0 - 15.1.0

VMware ESXi: 6.0 - 6.7

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External links
https://www.vmware.com/security/advisories/VMSA-2019-0014.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.