CVE-2021-36691

Publication date 30 August 2021

Last updated 15 July 2025

Ubuntu priority

Negligible

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Description

libjxl v0.5.0 is affected by a Assertion failed issue in lib/jxl/image.cc jxl::PlaneBase::PlaneBase(). When encoding a malicous GIF file using cjxl, an attacker can trigger a denial of service.

Read the notes from the security team

Why is this CVE negligible priority?

This is just a DoS in out of memory conditions

Learn more about Ubuntu priority

Status

Package Ubuntu Release Status
jpeg-xl 25.04 plucky Ignored
24.10 oracular Ignored end of life, was needs-triage
24.04 LTS noble Ignored
23.10 mantic Ignored end of life, was needs-triage
23.04 lunar Ignored end of life, was needs-triage
22.10 kinetic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Ignored end of standard support
14.04 LTS trusty Ignored end of standard support

Notes

mdeslaur

as of 2025-04-14, there is no fix from upstream for this issue

ej7367

As of 2025-07-15, there is no fix from upstream for this issue. Marking as ignored.

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Other references