Executive Summary

Title FriBidi vulnerability
Name USN-4179-1 First vendor Publication 2019-11-07
Vendor Ubuntu Last vendor Modification 2019-11-07
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
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Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores


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:
libfribidi0 1.0.5-3.1ubuntu0.19.10.1

Ubuntu 19.04:
libfribidi0 1.0.5-3.1ubuntu0.19.04.1

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


Package Information:

Original Source

Url : http://www.ubuntu.com/usn/USN-4179-1

Alert History

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Date Informations
2019-11-08 05:19:03
  • First insertion