SB2023062259 - Multiple vulnerabilities in VMWare vCenter Server
Published: June 22, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Heap-based buffer overflow (CVE-ID: CVE-2023-20892)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the DCERPC protocol implementation. A remote attacker can send specially crafted packets to the server, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Use-after-free (CVE-ID: CVE-2023-20893)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in DCERPC protocol implementation. A remote attacker can send specially crafted packets to the server, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
3) Out-of-bounds write (CVE-ID: CVE-2023-20894)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error in DCERPC protocol implementation. A remote attacker can send specially crafted packets to the server, trigger an out-of-bounds write and execute arbitrary code on the target system.
4) Out-of-bounds read (CVE-ID: CVE-2023-20895)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in DCERPC protocol implementation. A remote attacker can send specially crafted traffic to the server to trigger an out-of-bounds read error and read contents of memory on the system. The obtain information can be used to bypass authentication process and compromise the system.
5) Out-of-bounds read (CVE-ID: CVE-2023-20896)
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.
Remediation
Install update from vendor's website.