CVE-2020-8443

CRITICAL
9.8
CVSS Score
Published: January 30, 2020 at 12:34 AM UTC
Updated: June 17, 2026 at 03:26 AM UTC
1 product affected across 1 vendorOssec

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Severity
CRITICAL9.8
Exploit prediction
EPSS 3%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.7 ≤ v ≤ 3.5.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (4)

x_refsource_MISCExploitThird Party Advisory
https://github.com/ossec/ossec-hids/issues/1816
x_refsource_MISCThird Party Advisory
https://github.com/ossec/ossec-hids/issues/1821
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
https://security.gentoo.org/glsa/202007-33
x_refsource_MISCVendor Advisory
https://www.ossec.net/

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-193CWE-787

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