#VU62755 Heap-based buffer overflow in Avaya products

Vulnerability identifier: #VU62755

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: N/A

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ERS3500
Hardware solutions / Routers & switches, VoIP, GSM, etc
ERS3600
Hardware solutions / Routers & switches, VoIP, GSM, etc
ERS4900
Hardware solutions / Routers & switches, VoIP, GSM, etc
ERS5900
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Avaya

Description

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

The vulnerability exists due to a boundary error in the Mocana NanoSSL library. 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.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

ERS3500: All versions

ERS3600: All versions

ERS4900: All versions

ERS5900: All versions

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

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.