Heap-based buffer overflow in OpenJPEG - CVE-2020-6851
Published: January 14, 2020 / Updated: December 29, 2020
Vulnerability identifier: #VU24306
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-6851
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: openjpeg.org
Affected software:
OpenJPEG
OpenJPEG
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the opj_t1_clbl_decode_processor() function in libopenjp2.so. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2020-6851
Install update from vendor's website.