CVE-2021-46312

Publication date 22 August 2023

Last updated 23 February 2026

Ubuntu priority

Cvss 3 Severity Score

Description

An issue was discovered IW44EncodeCodec.cpp in djvulibre 3.5.28 in allows attackers to cause a denial of service via divide by zero.

Why is this CVE low priority?

Only a crash in an image parser

Learn more about Ubuntu priority

Status

Show unmaintained releases

Package	Ubuntu Release	Status
djvulibre	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	Fixed 3.5.28-2ubuntu0.24.04.2
	23.10 mantic	Ignored end of life, was needs-triage
	23.04 lunar	Ignored end of life, was needs-triage
	22.04 LTS jammy	Fixed 3.5.28-2ubuntu0.22.04.2
	20.04 LTS focal	Fixed 3.5.27.1-14ubuntu0.1+esm1
	18.04 LTS bionic	Fixed 3.5.27.1-8ubuntu0.4+esm1
	16.04 LTS xenial	Fixed 3.5.27.1-5ubuntu0.1+esm3
	14.04 LTS trusty	Ignored end of standard support

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Patch details

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

Package	Patch details
djvulibre	Upstream: https://sourceforge.net/p/djvu/djvulibre-git/ci/05d00e831a5c55af2d407a513a9157a03449dc2c/

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H