Apache Tomcat Hash Collision Denial Of Service Vulnerability
Severity: MEDIUM
CVE Identifier: CVE-2011-4858,CVE-2011-4084
Advisory Date: JUL 21, 2015
DESCRIPTION
Apache Tomcat before 5.5.35, 6.x before 6.0.35, and 7.x before 7.0.23 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.
TREND MICRO PROTECTION INFORMATION
Apply associated Trend Micro DPI Rules.
SOLUTION
Trend Micro Deep Security DPI Rule Number: 1004888
Trend Micro Deep Security DPI Rule Name: 1004888 - Restrict Number Of Parameters In HTTP Request
AFFECTED SOFTWARE AND VERSION
- apache tomcat 5.5.35
- apache tomcat 6.0.0
- apache tomcat 6.0.1
- apache tomcat 6.0.10
- apache tomcat 6.0.11
- apache tomcat 6.0.12
- apache tomcat 6.0.13
- apache tomcat 6.0.14
- apache tomcat 6.0.15
- apache tomcat 6.0.16
- apache tomcat 6.0.17
- apache tomcat 6.0.18
- apache tomcat 6.0.19
- apache tomcat 6.0.2
- apache tomcat 6.0.20
- apache tomcat 6.0.21
- apache tomcat 6.0.22
- apache tomcat 6.0.23
- apache tomcat 6.0.24
- apache tomcat 6.0.25
- apache tomcat 6.0.26
- apache tomcat 6.0.27
- apache tomcat 6.0.28
- apache tomcat 6.0.29
- apache tomcat 6.0.3
- apache tomcat 6.0.30
- apache tomcat 6.0.31
- apache tomcat 6.0.32
- apache tomcat 6.0.33
- apache tomcat 6.0.34
- apache tomcat 6.0.4
- apache tomcat 6.0.5
- apache tomcat 6.0.6
- apache tomcat 6.0.7
- apache tomcat 6.0.8
- apache tomcat 6.0.9
- apache tomcat 7.0.0
- apache tomcat 7.0.1
- apache tomcat 7.0.10
- apache tomcat 7.0.11
- apache tomcat 7.0.12
- apache tomcat 7.0.13
- apache tomcat 7.0.14
- apache tomcat 7.0.15
- apache tomcat 7.0.16
- apache tomcat 7.0.17
- apache tomcat 7.0.18
- apache tomcat 7.0.19
- apache tomcat 7.0.2
- apache tomcat 7.0.20
- apache tomcat 7.0.21
- apache tomcat 7.0.22
- apache tomcat 7.0.3
- apache tomcat 7.0.4
- apache tomcat 7.0.5
- apache tomcat 7.0.6
- apache tomcat 7.0.7
- apache tomcat 7.0.8
- apache tomcat 7.0.9