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Ubuntu Security Notice USN-5524-1
July 19, 2022
harfbuzz vulnerability
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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/2.7.4-1ubuntu3.1
https://launchpad.net/ubuntu/+source/harfbuzz/2.6.4-1ubuntu4.2