An Aspell security update has been released for Ubuntu Linux 14.04 ESM, 16.04 ESM, 18.04 LTS, 20.04 LTS, and 21.04.

USN-5023-1: Aspell vulnerability

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Ubuntu Security Notice USN-5023-1
July 26, 2021

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

- Ubuntu 21.04
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

Summary:

Aspell could be made to execute arbitrary code or cause a crash
if it received a specially crafted input.

Software Description:
- aspell: GNU Aspell spell-checker

Details:

It was discovered that Aspell incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code or
cause a crash.

Update instructions:

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

Ubuntu 21.04:
aspell 0.60.8-2ubuntu0.1
libaspell15 0.60.8-2ubuntu0.1

Ubuntu 20.04 LTS:
aspell 0.60.8-1ubuntu0.1
libaspell15 0.60.8-1ubuntu0.1

Ubuntu 18.04 LTS:
aspell 0.60.7~20110707-4ubuntu0.2
libaspell15 0.60.7~20110707-4ubuntu0.2

Ubuntu 16.04 ESM:
aspell 0.60.7~20110707-3ubuntu0.1+esm1
libaspell15 0.60.7~20110707-3ubuntu0.1+esm1

Ubuntu 14.04 ESM:
aspell 0.60.7~20110707-1ubuntu1+esm2
libaspell15 0.60.7~20110707-1ubuntu1+esm2

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

References:
  https://ubuntu.com/security/notices/USN-5023-1
CVE-2019-25051

Package Information:
  https://launchpad.net/ubuntu/+source/aspell/0.60.8-2ubuntu0.1
  https://launchpad.net/ubuntu/+source/aspell/0.60.8-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/aspell/0.60.7~20110707-4ubuntu0.2