USN-5983-1: Nette vulnerability

29 March 2023

Nette could be made to run programs if it received specially crafted network traffic.

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Releases

Packages

Details

Cyku Hong discovered that Nette was not properly handling and validating
data used for code generation. A remote attacker could possibly use this
issue to execute arbitrary code.

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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 18.04
Ubuntu 16.04

After a standard system update you need to restart any applications using
Nette to make all the necessary changes.

References

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Further reading