SB2022111508 - Multiple vulnerabilities in Moxa VPort Series

Description

This security bulletin contains information about 3 vulnerabilities.

1) Format string error (CVE-ID: CVE-2022-38157)

CWE-ID: CWE-134 - Use of Externally-Controlled Format String

CVSSv4: 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/E:U/U:Green

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

The vulnerability exists due to a format string error in the RTSP service. A remote attacker can supply a specially crafted input that contains format string specifiers and cause a denial of service condition on the target system.

2) Buffer overflow (CVE-ID: CVE-2022-38158)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 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/E:U/U:Green

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

The vulnerability exists due to a boundary error in the RTSP service. A remote attacker can trigger memory corruption and cause a denial of service condition on the target system.

3) NULL pointer dereference (CVE-ID: CVE-2022-38159)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 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/E:U/U:Green

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

The vulnerability exists due to a NULL pointer dereference error in the RTSP service. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://www.moxa.com/en/support/product-support/security-advisory/moxa-vport-series-improper-input-validation-vulnerability