SB2022050312 - Multiple vulnerabilities in Avaya switches

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Heap-based buffer overflow (CVE-ID: CVE-2022-29860)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to the process handling POST requests on the web server does not properly validate the NanoSSL return values. A remote attacker can pass specially crafted data to the application, trigger 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) Stack-based buffer overflow (CVE-ID: CVE-2022-29861)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the handling of multipart form data combined with a string that is not null-terminated. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

References

• https://www.armis.com/blog/tlstorm-2-nanossl-tls-library-misuse-leads-to-vulnerabilities-in-common-switches/