CVE-2018-8019

Debian Linux vulnerability

CVSS

7.4

EPSS

4.1%

EPSS pct

90th

Exploited

No known

When using an OCSP responder Apache Tomcat Native 1.2.0 to 1.2.16 and 1.1.23 to 1.1.34 did not correctly handle invalid responses. This allowed for revoked client certificates to be incorrectly identified. It was therefore possible for users to authenticate with revoked certificates when using mutual TLS. Users not using OCSP checks are not affected by this vulnerability.

Affected vendor

Debian

Affected product

Debian Linux

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness type (CWE)

CWE-295 — Improper Certificate Validation

Published

2018-07-31

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity.

Its EPSS score of 4.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2018-8019

Confirm whether Debian Debian Linux is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2018-8019.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-8019

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