CVE-2017-15698 Information

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.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

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@3Cannounce.tomcat.apache.org3E https://lists.apache.org/thread.html/ba661b0edd913b39ff129a32d855620dd861883ade05fd88a8ce517d@3Cdev.tomcat.apache.org3E https://lists.apache.org/thread.html/f8e0814e11c7f21f42224b6de111cb3f5e5ab5c15b78924c516d4ec2@3Cdev.tomcat.apache.org3E https://lists.apache.org/thread.html/re3b72cbb13e1dfe85c4a06959a3b6ca6d939b407ecca80db12b54220@3Cdev.tomcat.apache.org3E https://lists.apache.org/thread.html/rf8e8c091182b45daa50d3557cad9b10bb4198e3f08cf8f1c66a1b08d@3Cdev.tomcat.apache.org3E https://lists.debian.org/debian-lts-announce/2018/02/msg00011.html https://www.debian.org/security/2018/dsa-4118

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

5.9