Ubuntu alert USN-5524-1 (harfbuzz)

From:
             
 
Marc Deslauriers <marc.deslauriers@canonical.com>
To:
             
 
"ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com>
Subject:
             
 
[USN-5524-1] HarfBuzz vulnerability
Date:
             
 
Tue, 19 Jul 2022 09:28:26 -0400
Message-ID:
             
 
<be3257f7-5eaa-535e-a971-8148a75c64b4@canonical.com>
==========================================================================
Ubuntu Security Notice USN-5524-1
July 19, 2022

harfbuzz vulnerability
==========================================================================

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

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

HarfBuzz could be made to crash if it opened specially crafted data.

Software Description:
- harfbuzz: OpenType text shaping engine

Details:

It was discovered that HarfBuzz incorrectly handled certain glyph sizes. A
remote attacker could use this issue to cause HarfBuzz to crash, resulting
in a denial of service.

Update instructions:

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

Ubuntu 22.04 LTS:
  libharfbuzz0b                   2.7.4-1ubuntu3.1

Ubuntu 20.04 LTS:
  libharfbuzz0b                   2.6.4-1ubuntu4.2

After a standard system update you need to restart your session to make all
the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-5524-1
  CVE-2022-33068

Package Information:
  https://launchpad.net/ubuntu/+source/harfbuzz/2.7.4-1ubun...
  https://launchpad.net/ubuntu/+source/harfbuzz/2.6.4-1ubun...