Unrated severityNVD Advisory· Published Nov 16, 2012· Updated Jun 16, 2026
CVE-2012-2733
CVE-2012-2733
Description
java/org/apache/coyote/http11/InternalNioInputBuffer.java in the HTTP NIO connector in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.28 does not properly restrict the request-header size, which allows remote attackers to cause a denial of service (memory consumption) via a large amount of header data.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
71cpe:2.3:a:apache:tomcat:6.0:*:*:*:*:*:*:*+ 70 more
- cpe:2.3:a:apache:tomcat:6.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.0:alpha:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.10:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.11:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.12:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.13:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.14:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.15:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.16:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.17:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.18:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.19:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.1:alpha:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.20:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.24:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.26:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.27:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.28:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.29:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.2:alpha:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.2:beta:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.30:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.31:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.32:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.33:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.35:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.4:alpha:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.6:alpha:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.7:alpha:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.7:beta:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.8:alpha:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:6.0.9:beta:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.0:beta:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.10:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.11:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.12:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.13:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.14:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.15:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.16:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.17:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.18:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.19:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.20:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.21:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.22:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.23:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.25:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.2:beta:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.4:beta:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:apache:tomcat:7.0.9:*:*:*:*:*:*:*
- (no CPE)range: >= 6.0, <= 6.0.35; >= 7.0, <= 7.0.27
Patches
Vulnerability mechanics
References
16- tomcat.apache.org/security-6.htmlnvdVendor Advisory
- tomcat.apache.org/security-7.htmlnvdVendor Advisory
- lists.opensuse.org/opensuse-updates/2012-12/msg00089.htmlnvd
- lists.opensuse.org/opensuse-updates/2012-12/msg00090.htmlnvd
- lists.opensuse.org/opensuse-updates/2013-01/msg00037.htmlnvd
- marc.infonvd
- marc.infonvd
- secunia.com/advisories/51371nvd
- secunia.com/advisories/57126nvd
- svn.apache.org/viewvcnvd
- svn.apache.org/viewvcnvd
- www.securityfocus.com/bid/56402nvd
- www.securitytracker.com/idnvd
- www.ubuntu.com/usn/USN-1637-1nvd
- h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplaynvd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19218nvd
News mentions
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