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USN-5561-1: GNOME Web vulnerabilities

10 August 2022

Several security issues were fixed in GNOME Web.

Releases

Packages

Details

It was discovered that GNOME Web incorrectly filtered certain strings. A
remote attacker could use this issue to perform cross-site scripting (XSS)
attacks. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-45085,
CVE-2021-45086, CVE-2021-45087)

It was discovered that GNOME Web incorrectly handled certain long page
titles. A remote attacker could use this issue to cause GNOME Web to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2022-29536)

Update instructions

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

Ubuntu 22.04
Ubuntu 20.04

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