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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.041 (90.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.042 · newest: 0.041 · change: -0.001
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 Linux — versions 8.0
Weakness classification (CWE)
References
- mail-archives.us.apache.org/mod_mbox/www-announce/201807.mbox/<20180721101944.G… (mailing-list)
- access.redhat.com/errata/RHSA-2018:2469 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/104934 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.debian.org/debian-lts-announce/2018/08/msg00023.html (mailing-list, Mailing List, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:2470 (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1041507 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.apache.org/thread.html/ba661b0edd913b39ff129a32d855620dd861883ade05fd88a8… (mailing-list)
- lists.apache.org/thread.html/f8e0814e11c7f21f42224b6de111cb3f5e5ab5c15b78924c51… (mailing-list)
- lists.apache.org/thread.html/rf8e8c091182b45daa50d3557cad9b10bb4198e3f08cf8f1c6… (mailing-list)
- lists.apache.org/thread.html/re3b72cbb13e1dfe85c4a06959a3b6ca6d939b407ecca80db1… (mailing-list)
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.