A p11-kit security update has been released for Ubuntu 14.04 ESM.

USN-4677-2: p11-kit vulnerability

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Ubuntu Security Notice USN-4677-2
January 06, 2021

p11-kit vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 ESM

Summary:

Several security issues were fixed in p11-kit.

Software Description:
- p11-kit: p11-glue utilities

Details:

USN-4677-1 fixed a vulnerability in p11-kit. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

David Cook discovered that p11-kit incorrectly handled certain memory
operations. An attacker could use this issue to cause p11-kit to crash,
resulting in 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 14.04 ESM:
libp11-kit0 0.20.2-2ubuntu2+esm1
p11-kit 0.20.2-2ubuntu2+esm1
p11-kit-modules 0.20.2-2ubuntu2+esm1

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

References:
  https://usn.ubuntu.com/4677-2
  https://usn.ubuntu.com/4677-1
CVE-2020-29361