1. Ubuntu Security Notices
  2. USN-5922-1

USN-5922-1: FriBidi vulnerabilities

Publication date

6 March 2023

Overview

Several security issues were fixed in fribidi.

Releases

Packages

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

Details

It was discovered that FriBidi incorrectly handled the processing of input
strings, resulting in memory corruption. An attacker could possibly use this
issue to cause FriBidi to crash, resulting in a denial of service, or
potentially execute arbitrary code. (CVE-2022-25308)

It was discovered that FriBidi incorrectly validated input data to its CapRTL
unicode encoder, resulting in memory corruption. An attacker could possibly
use this issue to cause FriBidi to crash, resulting in a denial of service, or
potentially execute arbitrary code. (CVE-2022-25309)

It was discovered that FriBidi incorrectly handled empty input when removing
marks from unicode strings. An attacker could possibly use this to cause
FriBidi to crash, resulting in a denial of service, or potentially execute
arbitrary code. (CVE-2022-25310)

It was discovered that FriBidi incorrectly handled the processing of input
strings, resulting in memory corruption. An attacker could possibly use this
issue to cause FriBidi to crash, resulting in a denial of service, or
potentially execute arbitrary code. (CVE-2022-25308)

It was discovered that FriBidi incorrectly validated input data to its CapRTL
unicode encoder, resulting in memory corruption. An attacker could possibly
use this issue to cause FriBidi to crash, resulting in a denial of service, or
potentially execute arbitrary code. (CVE-2022-25309)

It was discovered that FriBidi incorrectly handled empty input when removing
marks from unicode strings. An attacker could possibly use this to cause
FriBidi to crash, resulting in a denial of service, or potentially execute
arbitrary code. (CVE-2022-25310)

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
16.04 xenial libfribidi-bin –  0.19.7-1ubuntu0.1~esm1  
libfribidi0 –  0.19.7-1ubuntu0.1~esm1  

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References

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