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USN-6664-1: less vulnerability

27 February 2024

less could be made to crash or run arbitrary commands if it receive a crafted input.

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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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Releases

Packages

  • less - pager program similar to more

Details

It was discovered that less incorrectly handled certain file names.
An attacker could possibly use this issue to cause a crash or execute
arbitrary commands.

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 23.10
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