USN-5314-1: Firefox vulnerabilities

Releases

• Ubuntu 21.10
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• firefox - Mozilla Open Source web browser

Details

A use-after-free was discovered when removing an XSLT parameter in some
circumstances. If a user were tricked into opening a specially crafted
website, an attacker could exploit this to cause a denial of service, or
execute arbitrary code. (CVE-2022-26485)

A use-after-free was discovered in the WebGPU IPC framework. If a user
were tricked into opening a specially crafted website, an attacker could
exploit this to cause a denial of service, or execute arbitrary code.
(CVE-2022-26486)

Update instructions

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

Ubuntu 21.10

• firefox - 97.0.2+build1-0ubuntu0.21.10.1

Ubuntu 20.04

• firefox - 97.0.2+build1-0ubuntu0.20.04.1

Ubuntu 18.04

• firefox - 97.0.2+build1-0ubuntu0.18.04.1

After a standard system update you need to restart Firefox to make
all the necessary changes.

References

• CVE-2022-26485
• CVE-2022-26486