Apache Tomcat NIO connector denial of service

tomcat-nio-connector-dos (65162) The risk level is classified as MediumMedium Risk

Description:

Apache Tomcat is vulnerable to a denial of service, caused by an error in the NIO connector when processing a request line. By sending a specially-crafted request, a remote attacker could exploit the vulnerability to cause an OutOfMemory error and crash the server.

*CVSS:

Base Score: 5
  Access Vector: Network
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 3.7
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Upgrade to the latest version of Tomcat (5.5.33, 6.0.30 or 7.0.6 or later), available from the Apache Tomcat Web site. See References.

For other distributions:
Apply the appropriate update for your system. See References.

References:

  • Apache Geronimo Web site: Fixed in Geronimo 2.1.8.
  • Apache Tomcat Web Site: Apache Tomcat 5.x vulnerabilities .
  • Apache Tomcat Web Site: Apache Tomcat 6.x vulnerabilities.
  • Apache Tomcat Web Site: Apache Tomcat 7.x vulnerabilities .
  • Novell Document ID: 5098550: Sentinel Log Manager 1.2.0.1 (1.2 Hot Fix 1).
  • Sun Product Security Blog, Nov 04, 2011: Multiple vulnerabilities in Apache Tomcat.
  • BID-46164: Apache Tomcat NIO Connector Denial of Service Vulnerability
  • CVE-2011-0534: Apache Tomcat 7.0.0 through 7.0.6 and 6.0.0 through 6.0.30 does not enforce the maxHttpHeaderSize limit for requests involving the NIO HTTP connector, which allows remote attackers to cause a denial of service (OutOfMemoryError) via a crafted request.
  • DSA-2160: tomcat6 -- several vulnerabilities
  • OSVDB ID: 70809: Apache Tomcat NIO HTTP Connector Request Line Processing DoS
  • RHSA-2011-0335: Important: tomcat6 security and bug fix update
  • RHSA-2011-0348: Important: tomcat6 security update
  • SA43194: Apache Tomcat Multiple Vulnerabilities
  • SA45022: Novell Sentinel Log Manager Java and Tomcat Vulnerabilities
  • SA45345: Novell Teaming Apache Tomcat Denial of Service Vulnerability
  • SA45373: Novell Vibe OnPrem Apache Tomcat Denial of Service Vulnerability
  • SA45442: IBM WebSphere Application Server Community Edition Apache Tomcat Vulnerabilities
  • SA46776: Oracle Solaris Apache Tomcat Multiple Vulnerabilities
  • SA47379: Apache Geronimo Multiple Vulnerabilities
  • SUSE-SR:2011:005: SUSE Security Summary Report

Platforms Affected:

  • Apache Geronimo 2.1
  • Apache Geronimo 2.1.1
  • Apache Geronimo 2.1.2
  • Apache Geronimo 2.1.3
  • Apache Geronimo 2.1.4
  • Apache Geronimo 2.1.5
  • Apache Geronimo 2.1.6
  • Apache Geronimo 2.1.7
  • Apache Geronimo 2.1.8
  • Apache Tomcat 5
  • 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 6.0.3
  • 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
  • IBM WebSphere Application Server 2.0 Community
  • JBoss Enterprise Web Server
  • Novell Sentinel Log Manager 1.1
  • Novell Teaming 2.1
  • Novell Vibe OnPrem 3
  • Oracle Solaris 11 Express
  • RedHat Enterprise Linux 6 Workstation
  • RedHat Enterprise Linux 6 Server
  • RedHat Enterprise Linux Desktop 6
  • RedHat Enterprise Linux HPC Node 6
  • RedHat Enterprise Linux Server EUS 6.0.z
  • Sun Solaris 10
  • Sun Solaris 9

Reported:

Feb 03, 2011

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