CVE-2016-6808Tomcat Jk Connector Memory Corruption
Buffer overflow in Apache Tomcat Connectors (mod_jk) before 1.2.42.
Published Oct 6, 2016 · Updated Aug 6, 2024
Key Facts
Patch in the next maintenance window- CVE-2016-6808 is a high-severity vulnerability (CVSS 8.1 v3.1) affecting Tomcat Jk Connector (Apache), libapache-mod-jk (debian), jbcs-httpd24-httpd (redhat) and 8 more products.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 23% probability of exploitation in the next 30 days.
- Fixed versions are available, including Tomcat Jk Connector 1.2.42, jbcs-httpd24-httpd 0:2.4.23-102.jbcs.el6, jbcs-httpd24-httpd 0:2.4.23-102.jbcs.el7.
- Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
Scores
CVSS v3.1
8.1
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
23%
Higher than 97.7% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
40/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
- advisoryRHSA-2016:2957
- advisoryRHSA-2016:2957
- advisoryRHSA-2017:0193
- advisoryRHSA-2017:0194
- advisory20161011 [SECURITY] CVE-2016-6808 Apache Tomcat JK ISAPI Connector buffer overflow
- advisoryhttp://tomcat.apache.org/security-jk.html
Description
Buffer overflow in Apache Tomcat Connectors (mod_jk) before 1.2.42.
Affected Products
24 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Tomcat Jk ConnectorApache | See advisory | 1.2.42 |
| libapache-mod-jkdebian | See advisory | 0 |
| jbcs-httpd24-httpdredhat | See advisory | 0:2.4.23-102.jbcs.el6 |
| jbcs-httpd24-mod_auth_kerbredhat | See advisory | 0:5.4-35.jbcs.el6 |
| jbcs-httpd24-mod_bmxredhat | See advisory | 0:0.9.6-14.GA.jbcs.el6 |
Patched Releases
Tomcat Jk Connector
1.2.42
jbcs-httpd24-httpd
0:2.4.23-102.jbcs.el6, 0:2.4.23-102.jbcs.el7
jbcs-httpd24-mod_auth_kerb
0:5.4-35.jbcs.el6, 0:5.4-35.jbcs.el7
jbcs-httpd24-mod_bmx
0:0.9.6-14.GA.jbcs.el6, 0:0.9.6-14.GA.jbcs.el7
jbcs-httpd24-mod_cluster-native
0:1.3.5-13.Final_redhat_1.jbcs.el6, 0:1.3.5-13.Final_redhat_1.jbcs.el7
jbcs-httpd24-mod_jk
0:1.2.41-14.redhat_1.jbcs.el6, 0:1.2.41-14.redhat_1.jbcs.el7
jbcs-httpd24-mod_rt
0:2.4.1-16.GA.jbcs.el6, 0:2.4.1-16.GA.jbcs.el7
jbcs-httpd24-mod_security
0:2.9.1-18.GA.jbcs.el6, 0:2.9.1-18.GA.jbcs.el7
jbcs-httpd24-nghttp2
0:1.12.0-9.jbcs.el6, 0:1.12.0-9.jbcs.el7
jbcs-httpd24-openssl
1:1.0.2h-12.jbcs.el6, 1:1.0.2h-12.jbcs.el7
Timeline
Publicly disclosed
Oct 6, 2016
Last updated
Aug 6, 2024
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
- CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
References
- advisoryRHSA-2016:2957
- advisoryRHSA-2016:2957
- advisoryRHSA-2017:0193
- advisoryRHSA-2017:0194
- advisory20161011 [SECURITY] CVE-2016-6808 Apache Tomcat JK ISAPI Connector buffer overflow
FAQ
Common Questions.
Buffer overflow in Apache Tomcat Connectors (mod_jk) before 1.2.42.
Affected: Tomcat Jk Connector (Apache); libapache-mod-jk (debian); jbcs-httpd24-httpd (redhat), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Tomcat Jk Connector 1.2.42, jbcs-httpd24-httpd 0:2.4.23-102.jbcs.el6, jbcs-httpd24-httpd 0:2.4.23-102.jbcs.el7.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
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