CVE-2021-3443 Null dereference in jasper

What is CVE-2021-3443?

CVE-2021-3443 is a medium-severity vulnerability in Fedoraproject Fedora, published on 25 Mar 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A NULL pointer dereference flaw was found in the way Jasper versions before 2.0.27 handled component references in the JP2 image format decoder. A specially crafted JP2 image file could cause an application using the Jasper library to crash when opened.

Weakness: CWE-476

Which versions are affected by CVE-2021-3443?

It affects 3 products.

Products include Fedoraproject Fedora, Jasper Project Jasper, Redhat Enterprise Linux.

How do I fix CVE-2021-3443?

Upgrade to a fixed version.

Is CVE-2021-3443 being exploited?

There is no known exploitation of CVE-2021-3443 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-6494, GHSA-f675-2h8m-hfrq, UBUNTU-CVE-2021-3443.