#VU55568 Out-of-bounds read in NicheStack TCP/IPv4 - CVE-2020-25767

Vulnerability identifier: #VU55568

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-25767

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
NicheStack TCP/IPv4
Hardware solutions / Firmware

Vendor: InterNiche Technologies

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in the DNSv4 component. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.

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

Vulnerable software versions

NicheStack TCP/IPv4: All versions

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External links
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/

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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.