CVE-2018-6942

Publication date 13 February 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

An issue was discovered in FreeType 2 through 2.9. A NULL pointer dereference in the Ins_GETVARIATION() function within ttinterp.c could lead to DoS via a crafted font file.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
freetype	17.10 artful	Fixed 2.8-0.2ubuntu2.1
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Notes

leosilva

for precise/esm, trusty and xenial code affected is not present.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
freetype	Upstream: ?id=29c

Severity score breakdown

CVSS version: CVSS v3.0

Base score 6.5 · Medium

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality impact	None
Integrity impact	None
Availability impact	High

Scores

Parameter	Value
Base score	6.5 · Medium
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-3572-1
FreeType vulnerability
14 February 2018

Other references

https://www.cve.org/CVERecord?id=CVE-2018-6942