CVE-2022-38266

Publication date 9 September 2022

Last updated 16 January 2026

Ubuntu priority

Cvss 3 Severity Score

Description

An issue in the Leptonica linked library (v1.79.0) allows attackers to cause an arithmetic exception leading to a Denial of Service (DoS) via a crafted JPEG file.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
leptonlib	26.04 LTS resolute	Not affected
	25.10 questing	Not affected
	25.04 plucky	Ignored end of life, was needs-triage
	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
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Vulnerable
	16.04 LTS xenial	Ignored end of standard support
	14.04 LTS trusty	Vulnerable
tesseract	26.04 LTS resolute	Not affected
	25.10 questing	Not affected
	25.04 plucky	Ignored end of life, was needs-triage
	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
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Vulnerable
	16.04 LTS xenial	Ignored end of standard support
	14.04 LTS trusty	Vulnerable

Notes

bruce-cable

Tesseract needs a rebuild once leptonica is patched

john-breton

Only fix needed for tesseract is a rebuild once leptonlib is patched. Only bionic and lower were built against the vulnerable version leptonlib (libtonica).

Patch details

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

Package	Patch details
leptonlib	Upstream: f062b42

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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H