Buffer overflow in Apache Tomcat Connectors (mod_jk) before 1.2.42.
Priority MEDIUM 62CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 3 fixed, 6 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
Buffer overflow in Apache Tomcat Connectors (mod_jk) before 1.2.42.
Why it matters now
EPSS 0.22685 97th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 3 advisoriesRed Hat: 3 fixed, 6 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 3 advisories
- RHSA-2017:0193 Released 2017-01-25 · Red Hat rating ImportantRed Hat JBoss Core Services Apache HTTP Server 2.4.23 Release on RHEL 6
- Red Hat JBoss Core Services on RHEL 6 Server jbcs-httpd24-httpd-2.4.23-102.jbcs.el6, jbcs-httpd24-httpd-devel-2.4.23-102.jbcs.el6, jbcs-httpd24-httpd-manual-2.4.23-102.jbcs.el6 +27
- RHSA-2017:0194 Released 2017-01-25 · Red Hat rating ImportantRed Hat JBoss Core Services Apache HTTP Server 2.4.23 Release on RHEL 7
- Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-httpd-2.4.23-102.jbcs.el7, jbcs-httpd24-httpd-devel-2.4.23-102.jbcs.el7, jbcs-httpd24-httpd-manual-2.4.23-102.jbcs.el7 +25
- RHSA-2016:2957 Released 2016-12-15 · Red Hat rating ImportantRed Hat JBoss Core Services Apache HTTP 2.4.23 Release
- Red Hat JBoss Core Services
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat JBoss Enterprise Application Platform 5 | Affected | — |
| Red Hat JBoss Enterprise Application Platform 6 | Affected | No fix yet |
| Red Hat JBoss Enterprise Web Server 1 | Affected | — |
| Red Hat JBoss Enterprise Web Server 2 | Affected | No fix yet |
| Red Hat JBoss Enterprise Web Server 3 | Affected | No fix yet |
| Red Hat JBoss Web Server 3 | Affected | No fix yet |
| Red Hat JBoss Core Services | Fixed | RHSA-2016:2957 |
| Red Hat JBoss Core Services on RHEL 6 Server | Fixed | RHSA-2017:0193 |
| Red Hat JBoss Core Services on RHEL 7 Server | Fixed | RHSA-2017:0194 |
Timeline
- 2026-10-02 Threatist record created from CVE-2016-6808
- 2026-10-03 Alias added: GHSA-jf5p-rxcp-5pm7
References
Advisory 6
Other 6
- [tomcat-dev] 20190319 svn commit: r1855831 [26/30] - in /tomcat/site/trunk: ./ docs/ xdocs/
- [tomcat-dev] 20190325 svn commit: r1856174 [25/29] - in /tomcat/site/trunk: docs/ xdocs/ xdocs/stylesheets/
- [tomcat-dev] 20190413 svn commit: r1857494 [18/20] - in /tomcat/site/trunk: ./ docs/ xdocs/
- [tomcat-dev] 20190415 svn commit: r1857582 [20/22] - in /tomcat/site/trunk: docs/ xdocs/stylesheets/
- [tomcat-dev] 20200203 svn commit: r1873527 [26/30] - /tomcat/site/trunk/docs/
- [tomcat-dev] 20200213 svn commit: r1873980 [30/34] - /tomcat/site/trunk/docs/
More Apache Tomcat Jk Connector vulnerabilities
- TI-2018-08416 Path traversal in Apache Tomcat Connectors CVSS 3.0HIGH 7.5
- TI-2018-01226 Information disclosure in Apache Tomcat Connectors CVSS 3.0HIGH 7.5
Sources
- CVE-2016-6808 · CVE Program
- CVE-2016-6808 · NVD
- FIRST EPSS
- GHSA-jf5p-rxcp-5pm7 · GitHub Advisory Database · CC BY 4.0
- CVE-2016-6808 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences