Heap-based Buffer Overflow in OSSEC-HIDS Log Analysis Component

Heap-based Buffer Overflow in OSSEC-HIDS Log Analysis Component

CVE-2020-8443 · CRITICAL Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to an off-by-one heap-based buffer overflow during the cleaning of crafted syslog msgs (received from authenticated remote agents and delivered to the analysisd processing queue by ossec-remoted).

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