CVE-2020-25767

Description

An issue was discovered in HCC Embedded NicheStack IPv4 4.1. The dnc_copy_in routine for parsing DNS domain names does not check whether a domain name compression pointer is pointing within the bounds of the packet (e.g., forward compression pointer jumps are allowed), which leads to an Out-of-bounds Read, and a Denial-of-Service as a consequence.

Weakness classification

• nvd@nist.gov: CWE-125

Primary references

• cve@mitre.org — Mitigation, Third Party Advisory
• cve@mitre.org — Third Party Advisory, US Government Resource
• af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, US Government Resource