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USN-3950-1: ZNC vulnerability

18 April 2019

ZNC could be made to crash or run programs if it received specially crafted network traffic.

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Releases

Packages

  • znc - advanced modular IRC bouncer

Details

It was discovered that ZNC incorrectly handled certain invalid encodings.
An authenticated remote user could use this issue to cause ZNC to crash,
resulting in a denial of service, or possibly execute arbitrary code.

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 18.10

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

References

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Further reading