high
7.5
CWE
125
Advisory Published
Updated

CVE-2023-20896

First published: Thu Jun 22 2023(Updated: )

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).

Credit: security@vmware.com

Affected SoftwareAffected VersionHow to fix
VMware vCenter Server>=4.0<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

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Reference Links

Frequently Asked Questions

  • What is CVE-2023-20896?

    CVE-2023-20896 is an out-of-bounds read vulnerability in the implementation of the DCERPC protocol in VMware vCenter Server.

  • What is the severity of CVE-2023-20896?

    The severity of CVE-2023-20896 is high with a CVSS score of 7.5.

  • How can a malicious actor exploit CVE-2023-20896?

    A malicious actor with network access to vCenter Server can trigger an out-of-bounds read by sending a specially crafted packet, leading to denial-of-service of certain services.

  • Which versions of VMware vCenter Server are affected by CVE-2023-20896?

    VMware vCenter Server versions 4.0 to 7.0 are affected by CVE-2023-20896.

  • How can I fix CVE-2023-20896?

    VMware has released security advisories with patches addressing CVE-2023-20896. It is recommended to apply the necessary patches or updates to mitigate the vulnerability.

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