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).
References (4)
Core 4
Core References
Third Party Advisory x_refsource_misc
https://github.com/ossec/ossec-hids/issues/1821
Vendor Advisory x_refsource_misc
https://www.ossec.net/
Exploit, Third Party Advisory x_refsource_misc
https://github.com/ossec/ossec-hids/issues/1816
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202007-33
Scores
CVSS v3
9.8
EPSS
0.0262
EPSS Percentile
83.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-193
CWE-787
Status
published
Products (1)
ossec/ossec
2.7 - 3.5.0
Published
Jan 30, 2020
Tracked Since
Feb 18, 2026