Headline
Ubuntu Security Notice USN-5709-2
Ubuntu Security Notice 5709-2 - USN-5709-1 fixed vulnerabilities in Firefox. The update introduced several minor regressions. This update fixes the problem. Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. It was discovered that Firefox saved usernames to a plaintext file. A local user could potentially exploit this to obtain sensitive information.
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Ubuntu Security Notice USN-5709-2
November 10, 2022
firefox vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
Summary:
USN-5709-1 introduced minor regressions in Firefox
Software Description:
- firefox: Mozilla Open Source web browser
Details:
USN-5709-1 fixed vulnerabilities in Firefox. The update introduced
several minor regressions. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code. (CVE-2022-42927,
CVE-2022-42928, CVE-2022-42929, CVE-2022-42930, CVE-2022-42932)
It was discovered that Firefox saved usernames to a plaintext file. A
local user could potentially exploit this to obtain sensitive information.
(CVE-2022-42931)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS:
firefox 106.0.5+build1-0ubuntu0.20.04.1
Ubuntu 18.04 LTS:
firefox 106.0.5+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-5709-2
https://ubuntu.com/security/notices/USN-5709-1
https://launchpad.net/bugs/1996178
Package Information:
https://launchpad.net/ubuntu/+source/firefox/106.0.5+build1-0ubuntu0.20.04.1
https://launchpad.net/ubuntu/+source/firefox/106.0.5+build1-0ubuntu0.18.04.1
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