critical
9.8
CWE
416
Advisory Published
Updated

CVE-2023-20893: Use After Free

First published: Thu Jun 22 2023(Updated: )

The VMware vCenter Server contains a use-after-free vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may exploit this issue to execute arbitrary code on the underlying operating system that hosts vCenter Server.

Credit: security@vmware.com

Affected SoftwareAffected VersionHow to fix
VMware vCenter Server<7.0
VMware vCenter Server=7.0
VMware vCenter Server=7.0-a
VMware vCenter Server=7.0-b
VMware vCenter Server=7.0-c
VMware vCenter Server=7.0-d
VMware vCenter Server=7.0-update1
VMware vCenter Server=7.0-update1a
VMware vCenter Server=7.0-update1c
VMware vCenter Server=7.0-update1d
VMware vCenter Server=7.0-update2
VMware vCenter Server=7.0-update2a
VMware vCenter Server=7.0-update2b
VMware vCenter Server=7.0-update2c
VMware vCenter Server=7.0-update2d
VMware vCenter Server=7.0-update3
VMware vCenter Server=7.0-update3a
VMware vCenter Server=7.0-update3c
VMware vCenter Server=7.0-update3d
VMware vCenter Server=7.0-update3e
VMware vCenter Server=7.0-update3f
VMware vCenter Server=7.0-update3g
VMware vCenter Server=7.0-update3h
VMware vCenter Server=7.0-update3i
VMware vCenter Server=7.0-update3j
VMware vCenter Server=7.0-update3k
VMware vCenter Server=7.0-update3l
VMware vCenter Server=8.0
VMware vCenter Server=8.0-a
VMware vCenter Server=8.0-b
VMware vCenter Server=8.0-c
VMware vCenter Server=8.0-update1
VMware vCenter Server=8.0-update1a

Remedy

https://www.vmware.com/security/advisories/VMSA-2023-0014.html

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2023-20893?

    The severity of CVE-2023-20893 is critical.

  • What is the affected software for CVE-2023-20893?

    The affected software for CVE-2023-20893 is VMware vCenter Server versions up to and including 7.0.

  • How can a malicious actor exploit CVE-2023-20893?

    A malicious actor with network access to vCenter Server can exploit CVE-2023-20893 to execute arbitrary code on the underlying operating system.

  • Are there any patches or updates available for CVE-2023-20893?

    Yes, VMware has released security advisories with patches to address CVE-2023-20893. It is recommended to update to the latest version of VMware vCenter Server.

  • Where can I find more information about CVE-2023-20893?

    You can find more information about CVE-2023-20893 in the vulnerability reports by Talos Intelligence and the security advisories by VMware.

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