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Ubuntu Security Notice USN-5746-1
November 28, 2022

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

- Ubuntu 16.04 ESM

Summary:

HarfBuzz could be made to crash if it received specially crafted
input.

Software Description:
- harfbuzz: OpenType text shaping engine

Details:

Behzad Najjarpour Jabbari discovered that HarfBuzz incorrectly handled
certain inputs. A remote attacker could possibly use this issue to cause
a denial of service.

Update instructions:

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

Ubuntu 16.04 ESM:
   libharfbuzz-bin                 1.0.1-1ubuntu0.1+esm1
   libharfbuzz0b                   1.0.1-1ubuntu0.1+esm1

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

References:
   https://ubuntu.com/security/notices/USN-5746-1
   CVE-2015-9274