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USN-5156-1: ICU vulnerability

24 November 2021

ICU could be made to crash if it received specially crafted input.

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Releases

Packages

  • icu - International Components for Unicode library

Details

It was discovered that ICU contains a double free issue.
An attacker could use this issue to cause a denial of service or possibly 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 21.04
Ubuntu 20.04

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

References

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Further reading