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USN-5290-1: Symfony vulnerabilities

24 August 2022

Several security issues were fixed in Symfony.

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Releases

Packages

  • symfony - set of reusable components and framework for web projects

Details

James Isaac and Mathias Brodala discovered that Symfony incorrectly handled
switch users functionality. An attacker could possibly use this issue to
enumerate users. (CVE-2021-21424)

It was discovered that Symfony incorrectly handled certain specially crafted
CSV files. An attacker could possibly use this issue to execute arbitrary
code. This issue only affected Ubuntu 20.04 ESM. (CVE-2021-41270)

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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.

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

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

References

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Further reading