When using a VirtualDirContext with Apache Tomcat 7.0.0 to 7.0.80 it was possible to bypass security constraints and/or view the source code of JSPs for resources served by the VirtualDirContext using a specially crafted request.
http://www.securityfocus.com/bid/100897
http://www.securitytracker.com/id/1039393
https://access.redhat.com/errata/RHSA-2018:0465
https://access.redhat.com/errata/RHSA-2018:0466
https://lists.apache.org/thread.html/[email protected]%3Cannounce.tomcat.apache.org%3E
https://lists.apache.org/thread.html/[email protected]%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/[email protected]%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/[email protected]%3Cdev.tomcat.apache.org%3E
https://lists.debian.org/debian-lts-announce/2018/06/msg00008.html
https://security.netapp.com/advisory/ntap-20171018-0001/
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03828en_us
https://usn.ubuntu.com/3665-1/
https://www.synology.com/support/security/Synology_SA_17_54_Tomcat
Source: MITRE
Published: 2017-09-19
Updated: 2019-04-15
Type: CWE-200
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH