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.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2017-15698 from the MITRE CVE dictionary dictionary and NIST NVD.
| CVSS3 Base Score | 5.4 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity Impact | Low |
| Availability Impact | None |
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat JBoss Web Server 3.1 for RHEL 7 (tomcat-native) | RHSA-2018:0466 | 2018-03-07 |
| Red Hat JBoss Web Server 3.1 for RHEL 6 (tomcat-native) | RHSA-2018:0466 | 2018-03-07 |
| Red Hat JBoss Web Server 3.1 | RHSA-2018:0465 | 2018-03-07 |
| Platform | Package | State |
|---|---|---|
| Red Hat JBoss EWS 2 | tomcat-native | Will not fix |
| Red Hat JBoss EAP 6 | tomcat-native | Will not fix |
| Red Hat JBoss EAP 5 | tomcat-native | Not affected |
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