Vulnerabilities (CVE)

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CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-8443 1 Ossec 1 Ossec 2022-04-26 7.5 HIGH 9.8 CRITICAL
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).
CVE-2020-8444 1 Ossec 1 Ossec 2020-07-27 7.5 HIGH 9.8 CRITICAL
In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to a use-after-free during processing of ossec-alert formatted msgs (received from authenticated remote agents and delivered to the analysisd processing queue by ossec-remoted).
CVE-2020-8445 1 Ossec 1 Ossec 2020-07-27 10.0 HIGH 9.8 CRITICAL
In OSSEC-HIDS 2.7 through 3.5.0, the OS_CleanMSG function in ossec-analysisd doesn't remove or encode terminal control characters or newlines from processed log messages. In many cases, those characters are later logged. Because newlines (\n) are permitted in messages processed by ossec-analysisd, it may be possible to inject nested events into the ossec log. Use of terminal control characters may allow obfuscating events or executing commands when viewed through vulnerable terminal emulators. This may be an unauthenticated remote attack for certain types and origins of logged data.
CVE-2020-8447 1 Ossec 1 Ossec 2020-07-27 7.5 HIGH 9.8 CRITICAL
In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to a use-after-free during processing of syscheck formatted msgs (received from authenticated remote agents and delivered to the analysisd processing queue by ossec-remoted).