What is CVE-2020-8443?

CVE-2020-8443 is a critical-severity vulnerability in Ossec, classified under Off-by-one Error. CVSS score: 9.8/10. Published 2020-01-30.

How severe is CVE-2020-8443?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Ossec

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 a…

EPSS: 0.027 (84.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ossec
N/a — versions n/a

Weakness classification (CWE)

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)

Frequently asked questions

What is CVE-2020-8443?: CVE-2020-8443 is a critical-severity vulnerability in Ossec, classified under Off-by-one Error. CVSS score: 9.8/10. Published 2020-01-30.
How severe is CVE-2020-8443?: Critical severity. CVSS v3 base score is 9.8 out of 10.