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Ubuntu Security Notice USN-5434-1

Ubuntu Security Notice 5434-1 - Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, bypass permission prompts, obtain sensitive information, bypass security restrictions, cause user confusion, or execute arbitrary code. It was discovered that Thunderbird would show the wrong security status after viewing an attached message that is signed or encrypted. An attacker could potentially exploit this by tricking the user into trusting the authenticity of a message.

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#vulnerability#web#ubuntu#dos#java#auth#firefox

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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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