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USN-5367-1: fish vulnerability

10 August 2022

fish could be made to run programs if it read data from a specially crafted file.

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Releases

Packages

  • fish - friendly interactive shell

Details

Justin Steven discovered that fish was not properly filtering local
git configuration directives when running background git commands.
A remote unauthenticated attacker could possibly use this issue to
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 22.04
Ubuntu 20.04

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

References

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Further reading