CVE-2018-18662

Publication date 26 October 2018

Last updated 17 October 2025

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

There is an out-of-bounds read in fz_run_t3_glyph in fitz/font.c in Artifex MuPDF 1.14.0, as demonstrated by mutool.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
mupdf	25.10 questing	Not affected
	25.04 plucky	Not affected
	24.10 oracular	Ignored end of life, was needs-triage
	24.04 LTS noble	Not affected
	23.10 mantic	Ignored end of life, was needs-triage
	23.04 lunar	Ignored end of life, was needs-triage
	22.10 kinetic	Ignored end of life, was needs-triage
	22.04 LTS jammy	Not affected
	21.10 impish	Ignored end of life
	21.04 hirsute	Ignored end of life
	20.10 groovy	Ignored end of life
	20.04 LTS focal	Not affected
	19.10 eoan	Ignored end of life
	19.04 disco	Not affected
	18.10 cosmic	Ignored end of life
	18.04 LTS bionic	Ignored risks regression
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not in release

Notes

shishirsub10

mutool's draw feature does not exist in xenial Bionic requires 4a99615a609eec2b84bb2341d74fac46a5998137 as pre patch and due to large api changes has risk of regression

Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H