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Vulnerability record · CVE-2013-4322 · published 26 February 2014

CVE-2013-4322: Apache tomcat improper input validation vulnerability

Apache · Tomcat

Apache Tomcat before 6.0.39, 7.x before 7.0.50, and 8.x before 8.0.0-RC10 processes chunked transfer coding without properly handling (1) a large total amount of chunked data or (2) whitespace characters in an HTTP header value within a trailer field, which allows remote attackers to cause a denial of service by streaming data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-3544.

4.3 CVSS 2.0 Medium EPSS 9.5% · top 4.7% CWE-20 · Improper input validation
4.3CVSS 2.0 base score
9.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
82References
16 Jun 2026Last modified by NVD

Description

Apache Tomcat before 6.0.39, 7.x before 7.0.50, and 8.x before 8.0.0-RC10 processes chunked transfer coding without properly handling (1) a large total amount of chunked data or (2) whitespace characters in an HTTP header value within a trailer field, which allows remote attackers to cause a denial of service by streaming data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-3544.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://advisories.mageia.org/MGASA-2014-0148.html
http://marc.info/?l=bugtraq&m=144498216801440&w=2
http://seclists.org/fulldisclosure/2014/Dec/23
http://secunia.com/advisories/59036
http://secunia.com/advisories/59675
http://secunia.com/advisories/59722
http://secunia.com/advisories/59724
http://secunia.com/advisories/59873
http://svn.apache.org/viewvc?view=revision&revision=1521834
http://svn.apache.org/viewvc?view=revision&revision=1521864
http://svn.apache.org/viewvc?view=revision&revision=1549522
http://svn.apache.org/viewvc?view=revision&revision=1549523
http://svn.apache.org/viewvc?view=revision&revision=1556540
http://tomcat.apache.org/security-6.html Vendor Advisory
http://tomcat.apache.org/security-7.html Vendor Advisory
http://tomcat.apache.org/security-8.html Vendor Advisory
http://www-01.ibm.com/support/docview.wss?uid=swg21667883
http://www-01.ibm.com/support/docview.wss?uid=swg21675886
http://www-01.ibm.com/support/docview.wss?uid=swg21677147
http://www-01.ibm.com/support/docview.wss?uid=swg21678113
http://www-01.ibm.com/support/docview.wss?uid=swg21678231
http://www.debian.org/security/2016/dsa-3530
http://www.mandriva.com/security/advisories?name=MDVSA-2015:052
http://www.mandriva.com/security/advisories?name=MDVSA-2015:084
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html
http://www.securityfocus.com/archive/1/534161/100/0/threaded
http://www.securityfocus.com/bid/65767
http://www.ubuntu.com/usn/USN-2130-1
http://www.vmware.com/security/advisories/VMSA-2014-0008.html
http://www.vmware.com/security/advisories/VMSA-2014-0012.html
https://bugzilla.redhat.com/show_bug.cgi?id=1069905
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04851013
https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.or
https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.or

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Source: NIST National Vulnerability Database (record CVE-2013-4322), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.