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Bug 865251 (CVE-2022-33992, CVE-2022-33993) - net-dns/dnrd: multiple vulnerabilities
Summary: net-dns/dnrd: multiple vulnerabilities
Alias: CVE-2022-33992, CVE-2022-33993
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor (vote)
Assignee: Gentoo Security
Whiteboard: B3 [upstream]
Depends on:
Reported: 2022-08-15 16:20 UTC by John Helmert III
Modified: 2022-08-15 16:20 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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Description John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2022-08-15 16:20:15 UTC

DNRD (aka Domain Name Relay Daemon) 2.20.3 forwards and caches DNS queries with the CD (aka checking disabled) bit set to 1. This leads to disabling of DNSSEC protection provided by upstream resolvers.


Misinterpretation of special domain name characters in DNRD (aka Domain Name Relay Daemon) 2.20.3 leads to cache poisoning because domain names and their associated IP addresses are cached in their misinterpreted form.

URL says upstream's dead, so I guess we just need to treeclean.