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.

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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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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