CVE-2018-8019
This allowed for revoked client certificates to be incorrectly identified.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.02%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
When using an OCSP responder Apache Tomcat Native 1.2.0 to 1.2.16 and 1.1.23 to 1.1.34 did not correctly handle invalid responses. This allowed for revoked client certificates to be incorrectly identified. It was therefore possible for users to authenticate with revoked certificates when using mutual TLS. Users not using OCSP checks are not affected by this vulnerability.
- CVSS 3.0
- 7.4 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 4.02% probability · 91th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-295
- Affected
- debian/debian linux · apache/tomcat native
- Source
- security@apache.org
EPSS 4.0% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://mail-archives.apache.org/mod_mbox/www-announce/201807.mbox/%3C20180721095943.GA24320%40minotaur.apache.org%3EMitigation, Vendor Advisory
- http://www.securityfocus.com/bid/104936Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041507Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:2469Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2470Third Party Advisory
- https://lists.apache.org/thread.html/ba661b0edd913b39ff129a32d855620dd861883ade05fd88a8ce517d%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/f8e0814e11c7f21f42224b6de111cb3f5e5ab5c15b78924c516d4ec2%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/re3b72cbb13e1dfe85c4a06959a3b6ca6d939b407ecca80db12b54220%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/rf8e8c091182b45daa50d3557cad9b10bb4198e3f08cf8f1c66a1b08d%40%3Cdev.tomcat.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2018/08/msg00023.htmlThird Party Advisory
- http://mail-archives.apache.org/mod_mbox/www-announce/201807.mbox/%3C20180721095943.GA24320%40minotaur.apache.org%3EMitigation, Vendor Advisory
- http://www.securityfocus.com/bid/104936Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041507Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:2469Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2470Third Party Advisory
- https://lists.apache.org/thread.html/ba661b0edd913b39ff129a32d855620dd861883ade05fd88a8ce517d%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/f8e0814e11c7f21f42224b6de111cb3f5e5ab5c15b78924c516d4ec2%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/re3b72cbb13e1dfe85c4a06959a3b6ca6d939b407ecca80db12b54220%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/rf8e8c091182b45daa50d3557cad9b10bb4198e3f08cf8f1c66a1b08d%40%3Cdev.tomcat.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2018/08/msg00023.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.