Heap-based buffer overflow in OSSEC - CVE-2020-8442
Published: January 30, 2020 / Updated: January 6, 2025
Vulnerability identifier: #VU24778
CSH Severity: High
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-8442
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the server component responsible for log analysis within the rootcheck decoder component. A remote authenticated attacker can 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.
Affected software
OSSEC
How to mitigate CVE-2020-8442
Install update from vendor's website.
OSSEC - update to 3.6.0