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USN-4179-1: FriBidi vulnerability

7 November 2019

Applications using FriBidi could be made to crash or run programs as your login if it displayed specially crafted text.

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Releases

Packages

  • fribidi - Free Implementation of the Unicode BiDi algorithm (utility)

Details

Alex Murray discovered a stack-based buffer overflow when handling a large
number of unicode isolate directives. An attacker could use this 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 19.10
Ubuntu 19.04

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

References

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Further reading