CVE-2020-6079

Description

An exploitable denial-of-service vulnerability exists in the resource allocation handling of Videolabs libmicrodns 0.1.0. When encountering errors while parsing mDNS messages, some allocated data is not freed, possibly leading to a denial-of-service condition via resource exhaustion. An attacker can send one mDNS message repeatedly to trigger this vulnerability through decoding of the domain name performed by rr_decode.

Weakness classification

• nvd@nist.gov: CWE-401

Primary references

• talos-cna@cisco.com — Third Party Advisory
• talos-cna@cisco.com — Exploit, Technical Description, Third Party Advisory
• talos-cna@cisco.com — Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Technical Description, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory