Vulnerabilities > CVE-2020-8443 - Off-by-one Error vulnerability in Ossec
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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).
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | Ossec
| 33 |
Common Weakness Enumeration (CWE)
References
- https://github.com/ossec/ossec-hids/issues/1816
- https://github.com/ossec/ossec-hids/issues/1816
- https://github.com/ossec/ossec-hids/issues/1821
- https://github.com/ossec/ossec-hids/issues/1821
- https://security.gentoo.org/glsa/202007-33
- https://security.gentoo.org/glsa/202007-33
- https://www.ossec.net/
- https://www.ossec.net/