What’s Vulnerable › Vulnerabilities
CVE-2017-15698
- Severity: medium (CVSS 5.9 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 3.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2018-01-31 · updated 2026-06-17
- Weakness: CWE-295
Description
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.
Affected products
- Apache Software Foundation Apache Tomcat Native: from 1.1.23 through 1.1.34; from 1.2.0 through 1.2.14
- Debian Linux: 8.0, 9.0
References
- http://www.securitytracker.com/id/1040390
- https://access.redhat.com/errata/RHSA-2018:0465
- https://access.redhat.com/errata/RHSA-2018:0466
- https://lists.apache.org/thread.html/6eb0a53e5827d97db1a05c736d01101fec21202a5b8fc77bb0eaaed8%40%3Cannounce.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/ba661b0edd913b39ff129a32d855620dd861883ade05fd88a8ce517d%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/f8e0814e11c7f21f42224b6de111cb3f5e5ab5c15b78924c516d4ec2%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/re3b72cbb13e1dfe85c4a06959a3b6ca6d939b407ecca80db12b54220%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/rf8e8c091182b45daa50d3557cad9b10bb4198e3f08cf8f1c66a1b08d%40%3Cdev.tomcat.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2018/02/msg00011.html
- https://www.debian.org/security/2018/dsa-4118
- http://www.securitytracker.com/id/1040390
- https://access.redhat.com/errata/RHSA-2018:0465
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