A Go security update has been released for Ubuntu Linux 16.04 LTS, 18.04 LTS, 20.04 LTS, and 20.10.

==========================================================================
Ubuntu Security Notice USN-4758-1
March 08, 2021

golang-1.10, golang-1.14 vulnerability
==========================================================================

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

- Ubuntu 20.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Go applications could be made to perform XSS attacks.

Software Description:
- golang-1.14: Go programming language compiler
- golang-1.10: Go programming language compiler

Details:

It was discovered that Go applications incorrectly handled uploaded content. If
a user were tricked into visiting a malicious page, a remote attacker could
exploit this with a crafted file to conduct cross-site scripting (XSS) attacks.

Update instructions:

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

Ubuntu 20.10:
golang-1.14 1.14.7-2ubuntu1.1
golang-1.14-go 1.14.7-2ubuntu1.1

Ubuntu 20.04 LTS:
golang-1.14 1.14.3-2ubuntu2~20.04.2
golang-1.14-go 1.14.3-2ubuntu2~20.04.2

Ubuntu 18.04 LTS:
golang-1.10 1.10.4-2ubuntu1~18.04.2
golang-1.10-go 1.10.4-2ubuntu1~18.04.2

Ubuntu 16.04 LTS:
golang-1.10 1.10.4-2ubuntu1~16.04.2
golang-1.10-go 1.10.4-2ubuntu1~16.04.2

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

References:
  https://ubuntu.com/security/notices/USN-4758-1
CVE-2020-24553

Package Information:
  https://launchpad.net/ubuntu/+source/golang-1.14/1.14.7-2ubuntu1.1
  https://launchpad.net/ubuntu/+source/golang-1.14/1.14.3-2ubuntu2~20.04.2
  https://launchpad.net/ubuntu/+source/golang-1.10/1.10.4-2ubuntu1~18.04.2
  https://launchpad.net/ubuntu/+source/golang-1.10/1.10.4-2ubuntu1~16.04.2