Vulnerability · Published Aug 18, 2021 · Assigned by mitre

CVE-2020-25928

Critical 9.8

In plain English

A critical-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.6% (higher than 90% of all known vulnerabilities).

Severity (CVSS NVD)9.8Critical

Exploit odds (30 days)3.6%top 10.4% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

The DNS feature in InterNiche NicheStack TCP/IP 4.0.1 is affected by: Buffer Overflow. The impact is: execute arbitrary code (remote). The component is: DNS response processing functions: dns_upcall(), getoffset(), dnc_set_answer(). The attack vector is: a specific DNS response packet. The code does not check the "response data length" field of individual DNS answers, which may cause out-of-bounds read/write operations, leading to Information leak, Denial-or-Service, or Remote Code Execution, depending on the context.

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ x_refsource_MISC
VU#608209 third-party-advisory, x_refsource_CERT-VN