Headline
Ubuntu Security Notice USN-5434-1
Ubuntu Security Notice 5434-1 - It was discovered that the methods of an Array object could be corrupted as a result of prototype pollution by sending a message to the parent process. If a user were tricked into opening a specially crafted website, an attacker could exploit this to execute JavaScript in a privileged context.
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Ubuntu Security Notice USN-5434-1
May 23, 2022
firefox vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 21.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
Summary:
Firefox could be made to execute JavaScript in a privileged context if it
opened a malicious website.
Software Description:
- firefox: Mozilla Open Source web browser
Details:
It was discovered that the methods of an Array object could be corrupted
as a result of prototype pollution by sending a message to the parent
process. If a user were tricked into opening a specially crafted website,
an attacker could exploit this to execute JavaScript in a privileged
context.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 21.10:
firefox 100.0.2+build1-0ubuntu0.21.10.1
Ubuntu 20.04 LTS:
firefox 100.0.2+build1-0ubuntu0.20.04.1
Ubuntu 18.04 LTS:
firefox 100.0.2+build1-0ubuntu0.18.04.1
After a standard system update you need to restart Firefox to make
all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5434-1
CVE-2022-1529, CVE-2022-1802
Package Information:
https://launchpad.net/ubuntu/+source/firefox/100.0.2+build1-0ubuntu0.21.10.1
https://launchpad.net/ubuntu/+source/firefox/100.0.2+build1-0ubuntu0.20.04.1
https://launchpad.net/ubuntu/+source/firefox/100.0.2+build1-0ubuntu0.18.04.1
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