CVE-2020-25690

Publication date 23 February 2021

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

An out-of-bounds write flaw was found in FontForge in versions before 20200314 while parsing SFD files containing certain LayerCount tokens. This flaw allows an attacker to manipulate the memory allocated on the heap, causing the application to crash or execute arbitrary code. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
fontforge	24.04 LTS noble	Needs evaluation
	23.10 mantic	Ignored
	23.04 lunar	Ignored
	22.10 kinetic	Ignored
	22.04 LTS jammy	Needs evaluation
	21.10 impish	Ignored
	21.04 hirsute	Ignored
	20.10 groovy	Ignored
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Not in release

Notes

alexmurray

This is a Red Hat specific CVE due to an insufficient backport of the upstream patch in CVE-2020-5395. Since that CVE is not yet patched in Ubuntu, I am adding this CVE to be tracked so we don't make the same mistake.

Severity score breakdown

Parameter	Value
Base score	8.8 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H