1. Ubuntu Security Notices
  2. USN-4179-1

USN-4179-1: FriBidi vulnerability

Publication date

7 November 2019

Overview

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

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.

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.

Update instructions

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

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
19.10 eoan libfribidi0 –  1.0.5-3.1ubuntu0.19.10.1
19.04 disco libfribidi0 –  1.0.5-3.1ubuntu0.19.04.1

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References

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