CVE-2017-15698

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.83% Top 30%
Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: Apache Software Foundation Apache Tomcat Native
Published at:
Updated at:

References

Link Tags
https://www.debian.org/security/2018/dsa-4118 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00011.html third party advisory mailing list
https://access.redhat.com/errata/RHSA-2018:0465 third party advisory vendor advisory
http://www.securitytracker.com/id/1040390 vdb entry third party advisory
https://lists.apache.org/thread.html/6eb0a53e5827d97db1a05c736d01101fec21202a5b8fc77bb0eaaed8%40%3Cannounce.tomcat.apache.org%3E mailing list
https://access.redhat.com/errata/RHSA-2018:0466 third party advisory vendor advisory
https://lists.apache.org/thread.html/ba661b0edd913b39ff129a32d855620dd861883ade05fd88a8ce517d%40%3Cdev.tomcat.apache.org%3E mailing list
https://lists.apache.org/thread.html/f8e0814e11c7f21f42224b6de111cb3f5e5ab5c15b78924c516d4ec2%40%3Cdev.tomcat.apache.org%3E mailing list
https://lists.apache.org/thread.html/rf8e8c091182b45daa50d3557cad9b10bb4198e3f08cf8f1c66a1b08d%40%3Cdev.tomcat.apache.org%3E mailing list
https://lists.apache.org/thread.html/re3b72cbb13e1dfe85c4a06959a3b6ca6d939b407ecca80db12b54220%40%3Cdev.tomcat.apache.org%3E mailing list

Frequently Asked Questions

What is the severity of CVE-2017-15698?
CVE-2017-15698 has been scored as a medium severity vulnerability.
How to fix CVE-2017-15698?
To fix CVE-2017-15698, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-15698 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-15698 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-15698?
CVE-2017-15698 affects Apache Software Foundation Apache Tomcat Native.
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