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CVE-2011-1475: Improper Input Validation

May 17, 2022 (updated January 17, 2024)

The HTTP BIO connector in Apache Tomcat 7.0.x before 7.0.12 does not properly handle HTTP pipelining, which allows remote attackers to read responses intended for other clients in opportunistic circumstances by examining the application data in HTTP packets, related to “a mix-up of responses for requests from different users.”

References

  • seclists.org/fulldisclosure/2011/Apr/97
  • svn.apache.org/viewvc?view=revision&revision=1086349
  • svn.apache.org/viewvc?view=revision&revision=1086352
  • tomcat.apache.org/security-7.html
  • exchange.xforce.ibmcloud.com/vulnerabilities/66676
  • github.com/advisories/GHSA-h6c8-rg87-f3pc
  • github.com/apache/tomcat/commit/d2e8f2ede7dea39f75f68384f331f38f094e4ed3
  • github.com/apache/tomcat/commit/fd8a579e0e2379a84826b11700adf396e4ed2041
  • issues.apache.org/bugzilla/show_bug.cgi?id=50957
  • nvd.nist.gov/vuln/detail/CVE-2011-1475
  • oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12374
  • web.archive.org/web/20120605200856/http://www.securityfocus.com/bid/47199
  • web.archive.org/web/20170202012852/http://www.securityfocus.com/archive/1/517363
  • web.archive.org/web/20170317142459/http://www.securitytracker.com/id?1025303

Code Behaviors & Features

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Affected versions

All versions starting from 7.0.0 before 7.0.12

Fixed versions

  • 7.0.12

Solution

Upgrade to version 7.0.12 or above.

Impact 5 MEDIUM

AV:N/AC:L/Au:N/C:P/I:N/A:N

Learn more about CVSS

Weakness

  • CWE-20: Improper Input Validation

Source file

maven/org.apache.tomcat/tomcat/CVE-2011-1475.yml

Spotted a mistake? Edit the file on GitLab.

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