medium
4.4
CWE
20
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2011-2526: Input Validation

First published: Wed Jul 13 2011(Updated: )

Apache Tomcat 5.5.x before 5.5.34, 6.x before 6.0.33, and 7.x before 7.0.19, when sendfile is enabled for the HTTP APR or HTTP NIO connector, does not validate certain request attributes, which allows local users to bypass intended file access restrictions or cause a denial of service (infinite loop or JVM crash) by leveraging an untrusted web application.

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
maven/org.apache.tomcat:tomcat>=7.0.0<7.0.19
7.0.19
maven/org.apache.tomcat:tomcat>=6.0.0<6.0.33
6.0.33
maven/org.apache.tomcat:tomcat<5.5.34
5.5.34
Tomcat=5.5.0
Tomcat=5.5.1
Tomcat=5.5.2
Tomcat=5.5.3
Tomcat=5.5.4
Tomcat=5.5.5
Tomcat=5.5.6
Tomcat=5.5.7
Tomcat=5.5.8
Tomcat=5.5.9
Tomcat=5.5.10
Tomcat=5.5.11
Tomcat=5.5.12
Tomcat=5.5.13
Tomcat=5.5.14
Tomcat=5.5.15
Tomcat=5.5.16
Tomcat=5.5.17
Tomcat=5.5.18
Tomcat=5.5.19
Tomcat=5.5.20
Tomcat=5.5.21
Tomcat=5.5.22
Tomcat=5.5.23
Tomcat=5.5.24
Tomcat=5.5.25
Tomcat=5.5.26
Tomcat=5.5.27
Tomcat=5.5.28
Tomcat=5.5.29
Tomcat=5.5.30
Tomcat=5.5.31
Tomcat=5.5.32
Tomcat=5.5.33
Tomcat=6.0
Tomcat=6.0.0
Tomcat=6.0.1
Tomcat=6.0.2
Tomcat=6.0.3
Tomcat=6.0.4
Tomcat=6.0.5
Tomcat=6.0.6
Tomcat=6.0.7
Tomcat=6.0.8
Tomcat=6.0.9
Tomcat=6.0.10
Tomcat=6.0.11
Tomcat=6.0.12
Tomcat=6.0.13
Tomcat=6.0.14
Tomcat=6.0.15
Tomcat=6.0.16
Tomcat=6.0.17
Tomcat=6.0.18
Tomcat=6.0.19
Tomcat=6.0.20
Tomcat=6.0.24
Tomcat=6.0.26
Tomcat=6.0.27
Tomcat=6.0.28
Tomcat=6.0.29
Tomcat=6.0.30
Tomcat=6.0.31
Tomcat=6.0.32
Tomcat=7.0.0
Tomcat=7.0.0-beta
Tomcat=7.0.1
Tomcat=7.0.2
Tomcat=7.0.3
Tomcat=7.0.4
Tomcat=7.0.5
Tomcat=7.0.6
Tomcat=7.0.7
Tomcat=7.0.8
Tomcat=7.0.9
Tomcat=7.0.10
Tomcat=7.0.11
Tomcat=7.0.12
Tomcat=7.0.14
Tomcat=7.0.17

Remedy

http://svn.apache.org/viewvc?view=revision&revision=1145383

Remedy

http://svn.apache.org/viewvc?view=revision&revision=1145571

Remedy

http://svn.apache.org/viewvc?view=revision&revision=1145694

Remedy

http://svn.apache.org/viewvc?view=revision&revision=1146005

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=720948

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2011-2526?

    CVE-2011-2526 has a medium severity rating due to its potential for local file access bypass and denial of service.

  • How do I fix CVE-2011-2526?

    To resolve CVE-2011-2526, upgrade your Apache Tomcat to version 7.0.19 or later, 6.0.33 or later, or 5.5.34 or later.

  • What versions of Apache Tomcat are affected by CVE-2011-2526?

    CVE-2011-2526 affects Apache Tomcat versions before 5.5.34, 6.0.33, and 7.0.19.

  • Can CVE-2011-2526 be exploited remotely?

    CVE-2011-2526 is primarily a local vulnerability, allowing local users to exploit it.

  • What are the potential impacts of CVE-2011-2526?

    Exploitation of CVE-2011-2526 can lead to unauthorized file access or cause a denial of service through an infinite loop.

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