GLSA 202012-18: PowerDNS: information disclosure

http://security.gentoo.org/

Severity:	low
Title:	PowerDNS: information disclosure
Date:	12/23/2020
Bugs:	#744160
ID:	202012-18

Synopsis

An information disclosure vulnerability in PowerDNS allow remote attackers to obtain sensitive information.

Background

The PowerDNS nameserver is an authoritative-only nameserver which uses a flexible backend architecture.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-dns/pdns	< 4.3.1	>= 4.3.1	All supported architectures

Description

It was discovered that PowerDNS did not properly handle certain unknown records.

Impact

An authorized attacker with the ability to insert crafted records into a zone might be able to leak the content of uninitialized memory. Crafted records cannot be inserted via AXFR.

Workaround

Do not take zone data from untrusted users.

Resolution

All PowerDNS users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-dns/pdns-4.3.1"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202012-18.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.