USN-4179-1: FriBidi vulnerability

USN-4179-1: FriBidi vulnerability

fribidi vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 19.10
  • Ubuntu 19.04


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

Software Description

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


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

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

Ubuntu 19.10
Ubuntu 19.04

To update your system, please follow these instructions:

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


Source: USN-4179-1: FriBidi vulnerability

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