CVEvulnerability
CVE-2020-8443
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2020-01-30
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-193, CWE-787
Description
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).
Affected configurations
• ossec ossec (>= 2.7 <= 3.5.0)
Related
References
- https://github.com/ossec/ossec-hids/issues/1816 Exploit, Third Party Advisory
- https://github.com/ossec/ossec-hids/issues/1821 Third Party Advisory
- https://security.gentoo.org/glsa/202007-33 Third Party Advisory
- https://www.ossec.net/ Vendor Advisory
- https://github.com/ossec/ossec-hids/issues/1816 Exploit, Third Party Advisory
- https://github.com/ossec/ossec-hids/issues/1821 Third Party Advisory
- https://security.gentoo.org/glsa/202007-33 Third Party Advisory
- https://www.ossec.net/ Vendor Advisory