CVE-2020-8443

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).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 72%
VendorProductVersion
ossecossec
2.7 ≤
𝑥
≤ 3.5.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/ossec/ossec-hids/issues/1816
https://github.com/ossec/ossec-hids/issues/1821
https://security.gentoo.org/glsa/202007-33
https://www.ossec.net/
https://github.com/ossec/ossec-hids/issues/1816
https://github.com/ossec/ossec-hids/issues/1821
https://security.gentoo.org/glsa/202007-33
https://www.ossec.net/