Vulnerability Details : CVE-2020-8444
In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to a use-after-free during processing of ossec-alert formatted msgs (received from authenticated remote agents and delivered to the analysisd processing queue by ossec-remoted).
Vulnerability category: Memory Corruption
Products affected by CVE-2020-8444
- cpe:2.3:a:ossec:ossec:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-8444
0.60%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-8444
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2020-8444
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-8444
-
https://github.com/ossec/ossec-hids/issues/1817
CVE-2020-8444: analysisd: OS_ReadMSG heap use-after-free with ossec-alert msgs. · Issue #1817 · ossec/ossec-hids · GitHubExploit;Third Party Advisory
-
https://www.ossec.net/
OSSEC - World's Most Widely Used Host Intrusion Detection System - HIDSVendor Advisory
-
https://security.gentoo.org/glsa/202007-33
OSSEC: Multiple vulnerabilities (GLSA 202007-33) — Gentoo securityThird Party Advisory
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https://github.com/ossec/ossec-hids/issues/1821
OSSEC-HIDS Security Audit Findings · Issue #1821 · ossec/ossec-hids · GitHubThird Party Advisory
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