CVE-2020-8277

Published: 17 November 2020

A Node.js application that allows an attacker to trigger a DNS request for a host of their choice could trigger a Denial of Service in versions < 15.2.1, < 14.15.1, and < 12.19.1 by getting the application to resolve a DNS record with a larger number of responses. This is fixed in 15.2.1, 14.15.1, and 12.19.1.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
c-ares
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo)
Released (1.17.1-1)
Ubuntu 20.10 (Groovy Gorilla)
Released (1.16.1-1ubuntu0.1)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable

Ubuntu 16.04 LTS (Xenial Xerus) Not vulnerable

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: https://github.com/c-ares/c-ares/commit/0d252eb3b2147179296a3bdb4ef97883c97c54d3