Out-of-bounds read in vCenter Server - CVE-2023-20896

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Main Vulnerability Database Vulnerabilities #VU77639

Out-of-bounds read in vCenter Server - CVE-2023-20896

Published: June 22, 2023


Vulnerability identifier: #VU77639
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-20896
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within DCERPC protocol implementation. A remote attacker can send specially crafted packets to the server, trigger an out-of-bounds read error and crash vmcad, vmdird, or vmafdd services.


Affected software

vCenter Server
Dell EMC VxRail Appliance

How to mitigate CVE-2023-20896

Install updates from vendor's website.

vCenter Server - addressed in versions 7.0 U3m, 8.0 U1b
Dell EMC VxRail Appliance - update to 8.0.101

External References

Related Security Bulletins