CVE-2022-29536

Publication date 20 April 2022

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

In GNOME Epiphany before 41.4 and 42.x before 42.2, an HTML document can trigger a client buffer overflow (in ephy_string_shorten in the UI process) via a long page title. The issue occurs because the number of bytes for a UTF-8 ellipsis character is not properly considered.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
epiphany-browser	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Fixed 42.1-1ubuntu1
	21.10 impish	Ignored end of life
	20.04 LTS focal	Fixed 3.36.4-0ubuntu2
	18.04 LTS bionic	Vulnerable
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Ignored end of standard support

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)