Exploited
critical
9.8
CWE
787 119 22
Advisory Published
Updated

CVE-2023-34048: VMware vCenter Server Out-of-Bounds Write Vulnerability

First published: Wed Oct 25 2023(Updated: )

vCenter Server contains an out-of-bounds write vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger an out-of-bounds write potentially leading to remote code execution.

Credit: security@vmware.com security@vmware.com

Affected SoftwareAffected VersionHow to fix
VMware vCenter Server>=4.0<=5.5
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=7.0-update3m
VMware vCenter Server=7.0-update3n
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
VMware vCenter Server=8.0-update1b
VMware vCenter Server=8.0-update1c

Remedy

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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Reference Links

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2023-34048?

    CVE-2023-34048 is a vulnerability in vCenter Server that allows a malicious actor to trigger an out-of-bounds write potentially leading to remote code execution.

  • What is the severity of CVE-2023-34048?

    CVE-2023-34048 has a severity rating of 9.8, which means it is considered critical.

  • How does CVE-2023-34048 affect vCenter Server?

    CVE-2023-34048 affects vCenter Server by exploiting an out-of-bounds write vulnerability in the implementation of the DCERPC protocol.

  • What versions of vCenter Server are affected by CVE-2023-34048?

    CVE-2023-34048 affects VMware vCenter Server versions 4.0 to 5.5, and versions 7.0 to 8.0.

  • How can I fix CVE-2023-34048?

    To fix CVE-2023-34048, it is recommended to apply the necessary updates or patches provided by VMware. Please refer to the official VMware security advisory for specific instructions.

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