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Bug 865251 (CVE-2022-33992, CVE-2022-33993)

Summary: net-dns/dnrd: multiple vulnerabilities
Product: Gentoo Security Reporter: John Helmert III <ajak>
Component: VulnerabilitiesAssignee: Gentoo Security <security>
Status: CONFIRMED ---    
Severity: minor CC: maintainer-needed
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
Whiteboard: B3 [upstream]
Package list:
Runtime testing required: ---

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.