USN-6559-1: ZooKeeper vulnerabilities

16 January 2024

Several security issues were fixed in ZooKeeper.

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Releases

Packages

  • zookeeper - High-performance coordination service for distributed applications

Details

It was discovered that ZooKeeper incorrectly handled authorization for
the getACL() command. A remote attacker could possibly use this issue to
obtain sensitive information. This issue only affected Ubuntu 14.04
LTS and Ubuntu 16.04 LTS. (CVE-2019-0201)

Damien Diederen discovered that ZooKeeper incorrectly handled
authorization if SASL Quorum Peer authentication is enabled. An
attacker could possibly use this issue to bypass ZooKeeper's
authorization system. This issue only affected Ubuntu 18.04 LTS,
Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 23.04
and Ubuntu 23.10. (CVE-2023-44981)

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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.

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Update instructions

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

Ubuntu 23.10
Ubuntu 23.04
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

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

References

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Further reading