Vulnerability in Apache Tomcat Native
CVE-2018-8020
Apache Tomcat Native 1.2.0 to 1.2.16 and 1.1.23 to 1.1.34 has a flaw that does not properly check OCSP pre-produced responses, which are lists (multiple entries) of certificate statuses. Subsequently, revoked client certificates may not be properly identified, allowing for users to authenticate with revoked certificates to connections that require mutual TLS. Users not using OCSP checks are not affected by this vulnerability.
Vulnerability class: Improper Certificate Validation
EPSS: 0.042 (90.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Apache Tomcat_native
- Apache Software Foundation Tomcat Native — versions 1.2.0 to 1.2.16, 1.1.23 to 1.1.34
- Debian Debian_linux — versions 8.0
Weakness classification (CWE)
References
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- security@apache.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
Frequently asked questions
- What is CVE-2018-8020?
- CVE-2018-8020 is a high-severity vulnerability in Apache Tomcat Native, classified under Improper Certificate Validation. CVSS score: 7.4/10. Published 2018-07-31.
- How severe is CVE-2018-8020?
- High severity. CVSS v3 base score is 7.4 out of 10.