An EventSource security update has been released for Ubuntu Linux 22.04 LTS, 20.04 LTS, 18.04 LTS, and 16.04 LTS.

USN-6082-1: EventSource vulnerability

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Ubuntu Security Notice USN-6082-1
May 17, 2023

node-eventsource vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)

Summary:

EventSource could leak sensitive information if it opened a specially crafted
input file.

Software Description:
- node-eventsource: EventSource client for Node.js and Browser (polyfill)

Details:

It was discovered that EventSource incorrectly handled certain inputs. If a
user or an automated system were tricked into opening a specially crafted
input file, a remote attacker could possibly use this issue to obtain
sensitive information.

Update instructions:

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

Ubuntu 22.04 LTS:
node-eventsource 1.1.0+~1.1.8-1ubuntu0.1

Ubuntu 20.04 LTS:
node-eventsource 0.2.1-1+deb10u1build0.20.04.1

Ubuntu 18.04 LTS:
node-eventsource 0.2.1-1+deb10u1build0.18.04.1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
node-eventsource 0.1.6-1ubuntu0.1~esm1

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

References:
https://ubuntu.com/security/notices/USN-6082-1
CVE-2022-1650

Package Information:

https://launchpad.net/ubuntu/+source/node-eventsource/1.1.0+~1.1.8-1ubuntu0.1

https://launchpad.net/ubuntu/+source/node-eventsource/0.2.1-1+deb10u1build0.20.04.1

https://launchpad.net/ubuntu/+source/node-eventsource/0.2.1-1+deb10u1build0.18.04.1