Vulnerability in Apache Tomcat Native
CVE-2017-15698
When parsing the AIA-Extension field of a client certificate, Apache Tomcat Native Connector 1.2.0 to 1.2.14 and 1.1.23 to 1.1.34 did not correctly handle fields longer than 127 bytes. The result of the parsing error was to skip the OCSP check. It was therefore possible for client certificates that should have been rejected (if the OCSP check had been made) to be accepted. 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 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.035 (89.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.035 · newest: 0.035 · change: 0.000
Affected products
- Apache Tomcat Native
- Apache Software Foundation Tomcat Native — versions 1.2.0 to 1.2.14, 1.1.23 to 1.1.34
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
References
- www.debian.org/security/2018/dsa-4118 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/02/msg00011.html (mailing-list, Mailing List, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:0465 (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1040390 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.apache.org/thread.html/6eb0a53e5827d97db1a05c736d01101fec21202a5b8fc77bb0… (mailing-list)
- access.redhat.com/errata/RHSA-2018:0466 (vendor-advisory, Third Party Advisory)
- 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-2017-15698?
- CVE-2017-15698 is a medium-severity vulnerability in Apache Tomcat Native, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2018-01-31.
- How severe is CVE-2017-15698?
- Medium severity. CVSS v3 base score is 5.9 out of 10.