USN-4353-1: Firefox vulnerabilities
firefox vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
- Ubuntu 19.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
Summary
Firefox could be made to crash or run programs as your login if it
opened a malicious website.
Software Description
- firefox – Mozilla Open Source web browser
Details
Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, bypass security
restrictions, spoof the URL bar, or execute arbitrary code.
(CVE-2020-6831, CVE-2020-12387, CVE-2020-12390, CVE-2020-12391,
CVE-2020-12394, CVE-2020-12395, CVE-2020-12396)
It was discovered that the Devtools’ ‘Copy as cURL’ feature did not
properly HTTP POST data of a request. If a user were tricked in to using
the ‘Copy as cURL’ feature to copy and paste a command with specially
crafted data in to a terminal, an attacker could potentially exploit this
to obtain sensitive information from local files.
(CVE-2020-12392)
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 20.04 LTS
- firefox – 76.0+build2-0ubuntu0.20.04.1
- Ubuntu 19.10
- firefox – 76.0+build2-0ubuntu0.19.10.1
- Ubuntu 18.04 LTS
- firefox – 76.0+build2-0ubuntu0.18.04.1
- Ubuntu 16.04 LTS
- firefox – 76.0+build2-0ubuntu0.16.04.1
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart Firefox to make
all the necessary changes.
References
- CVE-2020-12387
- CVE-2020-12390
- CVE-2020-12391
- CVE-2020-12392
- CVE-2020-12394
- CVE-2020-12395
- CVE-2020-12396
- CVE-2020-6831
Source: USN-4353-1: Firefox vulnerabilities
