What’s Vulnerable › Vulnerabilities

CVE-2021-3443

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-03-25 · updated 2026-06-17
• Weakness: CWE-476

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.

Affected products

• Fedoraproject Fedora: 33
• jasper: before 2.0.27 — fixed in 2.0.27
• Red Hat Enterprise Linux: 6.0, 7.0, 8.0

How to fix

Upgrade to a fixed version: jasper 2.0.27. Check the vendor advisory for mitigations.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1939233
• https://bugzilla.redhat.com/show_bug.cgi?id=1939233

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