SB2020013017 - Heap-based buffer overflow in OSSEC

Description

This security bulletin contains information about 1 vulnerability.

1) Heap-based buffer overflow (CVE-ID: CVE-2020-8442)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: 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]

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.

Remediation

Install update from vendor's website.

References

• https://github.com/ossec/ossec-hids/issues/1820
• https://github.com/ossec/ossec-hids/issues/1821
• https://github.com/advisories/GHSA-249h-cc9x-grm3