CVE-2017-15698: vulnerability in Apache Tomcat Native
Published · Updated
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3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 3.5%
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 NativeRelated CVEs — Apache Tomcat Native
In the same product, most dangerous first.
CVE-2018-8020—CVE-2018-8020EPSS 4.2%CVE-2018-8019—CVE-2018-8019EPSS 4.0%CVE-2026-29145CRITICALApache Tomcat, Apache Tomcat Native: OCSP checks sometimes soft-fail even when soft-fail is disabledEPSS 0.7%CVE-2026-24734HIGHApache Tomcat Native, Apache Tomcat: OCSP revocation bypassEPSS 0.6%CVE-2026-86243HIGHApache Tomcat Native: DoS via TLS handshakeEPSS 0.6%CVE-2026-86246CRITICALApache Tomcat Native: Insecure OpenSSL options enabledEPSS 0.3%
References
https://access.redhat.com/errata/RHSA-2018:0465https://access.redhat.com/errata/RHSA-2018:0466https://lists.apache.org/thread.html/6eb0a53e5827d97db1a05c736d01101fec21202a5b8fc77bb0eaaed8%40%3Cannounce.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/ba661b0edd913b39ff129a32d855620dd861883ade05fd88a8ce517d%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/f8e0814e11c7f21f42224b6de111cb3f5e5ab5c15b78924c516d4ec2%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/re3b72cbb13e1dfe85c4a06959a3b6ca6d939b407ecca80db12b54220%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/rf8e8c091182b45daa50d3557cad9b10bb4198e3f08cf8f1c66a1b08d%40%3Cdev.tomcat.apache.org%3Ehttps://lists.debian.org/debian-lts-announce/2018/02/msg00011.htmlhttps://www.debian.org/security/2018/dsa-4118http://www.securitytracker.com/id/1040390