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USN-5220-1: Composer vulnerability

8 July 2022

Composer could be made to run programs if it received specially crafted URL values.

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Releases

Packages

Details

It was discovered that Composer did not properly sanitize URLs for
Mercurial repositories in the root composer.json and package source
download URLs. A remote 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 20.04
Ubuntu 18.04
Ubuntu 16.04

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

References

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Further reading