NULL pointer dereference in OpenJPEG - CVE-2020-27842

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Main Vulnerability Database Vulnerabilities #VU50018

NULL pointer dereference in OpenJPEG - CVE-2020-27842

Published: January 5, 2021 / Updated: January 26, 2021


Vulnerability identifier: #VU50018
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-27842
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: openjpeg.org
Affected software:
OpenJPEG

Detailed vulnerability description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in openjpeg's t2 encoder in versions prior to 2.4.0. A remote attacker can pass specially crafted image to the application and perform a denial of service (DoS) attack.


How to mitigate CVE-2020-27842

Install update from vendor's website.

Sources