USN-7203-1: PowerDNS vulnerabilities

14 January 2025

Several security issues were fixed in PowerDNS.

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Releases

Packages

  • pdns - extremely powerful and versatile nameserver
  • pdns-recursor - PowerDNS Recursor

Details

Wei Hao discovered that PowerDNS Authoritative Server incorrectly handled
memory when accessing certain files. An attacker could possibly use this
issue to achieve arbitrary code execution. (CVE-2018-1046)

It was discovered that PowerDNS Authoritative Server and PowerDNS Recursor
incorrectly handled memory when receiving certain remote input. An attacker
could possibly use this issue to cause denial of service. (CVE-2018-10851)

Kees Monshouwer discovered that PowerDNS Authoritative Server and PowerDNS
Recursor incorrectly handled request validation after having cached
malformed input. An attacker could possibly use this issue to cause denial
of service. (CVE-2018-14626)

Toshifumi Sakaguchi discovered that PowerDNS Recursor incorrectly handled
requests after having cached malformed input. An attacker could possibly
use this issue to cause denial of service. (CVE-2018-14644)

Nathaniel Ferguson discovered that PowerDNS Authoritative Server
incorrectly handled memory when receiving certain remote input. An attacker
could possibly use this issue to obtain sensitive information.
(CVE-2020-17482)

Nicolas Dehaine and Dmitry Shabanov discovered that PowerDNS Authoritative
Server and PowerDNS Recursor incorrectly handled IXFR requests in certain
circumstances. An attacker could possibly use this issue to cause denial of
service. (CVE-2022-27227)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

In general, a standard system update will make all the necessary changes.

References

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Further reading