{"id":"CVE-2012-3544","title":"Apache Tomcat 6.x before 6.0.37 and 7.x before 7.0.30 does not properly handle chunk extensions in chunked transfer coding, which allows remote attackers to cause a denial of service by streaming data.","summary":"Apache Tomcat 6.x before 6.0.37 and 7.x before 7.0.30 does not properly handle chunk extensions in chunked transfer coding, which allows remote attackers to cause a denial of service by streaming data.","severity":"medium","cvss":5,"cvssVector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","cwe":["CWE-20"],"vendor":"apache","product":"tomcat","affected":["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 = 6.0.33","tomcat = 6.0.35","tomcat = 6.0.36","tomcat = 7.0.0","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 = 7.0.13","tomcat = 7.0.14","tomcat = 7.0.15","tomcat = 7.0.16","tomcat = 7.0.17","tomcat = 7.0.18","tomcat = 7.0.19","tomcat = 7.0.20","tomcat = 7.0.21","tomcat = 7.0.22","tomcat = 7.0.23","tomcat = 7.0.25","tomcat = 7.0.28"],"published":"2013-06-01","updated":"2026-10-09","sourceUpdated":"2026-10-09T20:17:03.893","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2012-3544","references":[{"url":"http://archives.neohapsis.com/archives/bugtraq/2013-05/0042.html","label":"secalert@redhat.com"},{"url":"http://seclists.org/fulldisclosure/2014/Dec/23","label":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/coyote/http11/filters/ChunkedInputFilter.java?r1=1476592&r2=1476591&pathrev=1476592","label":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc?view=revision&revision=1378702","label":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc?view=revision&revision=1378921","label":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc?view=revision&revision=1476592","label":"secalert@redhat.com"},{"url":"http://tomcat.apache.org/security-6.html","label":"secalert@redhat.com"},{"url":"http://tomcat.apache.org/security-7.html","label":"secalert@redhat.com"},{"url":"http://www.oracle.com/technetwork/topics/security/cpujan2014-1972949.html","label":"secalert@redhat.com"},{"url":"http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html","label":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/archive/1/534161/100/0/threaded","label":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/59797","label":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/64758","label":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1841-1","label":"secalert@redhat.com"},{"url":"http://www.vmware.com/security/advisories/VMSA-2014-0012.html","label":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org%3E","label":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org%3E","label":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org%3E","label":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org%3E","label":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.org%3E","label":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.org%3E","label":"secalert@redhat.com"},{"url":"http://archives.neohapsis.com/archives/bugtraq/2013-05/0042.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2014/Dec/23","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/coyote/http11/filters/ChunkedInputFilter.java?r1=1476592&r2=1476591&pathrev=1476592","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://svn.apache.org/viewvc?view=revision&revision=1378702","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://svn.apache.org/viewvc?view=revision&revision=1378921","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://svn.apache.org/viewvc?view=revision&revision=1476592","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://tomcat.apache.org/security-6.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://tomcat.apache.org/security-7.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.oracle.com/technetwork/topics/security/cpujan2014-1972949.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/archive/1/534161/100/0/threaded","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/59797","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/64758","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1841-1","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.vmware.com/security/advisories/VMSA-2014-0012.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org%3E","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org%3E","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org%3E","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org%3E","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.org%3E","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.org%3E","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.11001,"epssPercentile":0.95805,"ingestedAt":"2026-10-09T21:12:42.312Z","slug":"CVE-2012-3544","body":"## Overview\n\nApache Tomcat 6.x before 6.0.37 and 7.x before 7.0.30 does not properly handle chunk extensions in chunked transfer coding, which allows remote attackers to cause a denial of service by streaming data.\n\n## Affected\n\n- `tomcat = 6.0`\n- `tomcat = 6.0.0`\n- `tomcat = 6.0.1`\n- `tomcat = 6.0.2`\n- `tomcat = 6.0.3`\n- `tomcat = 6.0.4`\n- `tomcat = 6.0.5`\n- `tomcat = 6.0.6`\n- `tomcat = 6.0.7`\n- `tomcat = 6.0.8`\n- `tomcat = 6.0.9`\n- `tomcat = 6.0.10`\n- `tomcat = 6.0.11`\n- `tomcat = 6.0.12`\n- `tomcat = 6.0.13`\n- `tomcat = 6.0.14`\n- `tomcat = 6.0.15`\n- `tomcat = 6.0.16`\n- `tomcat = 6.0.17`\n- `tomcat = 6.0.18`\n- `tomcat = 6.0.19`\n- `tomcat = 6.0.20`\n- `tomcat = 6.0.24`\n- `tomcat = 6.0.26`\n- `tomcat = 6.0.27`\n- `tomcat = 6.0.28`\n- `tomcat = 6.0.29`\n- `tomcat = 6.0.30`\n- `tomcat = 6.0.31`\n- `tomcat = 6.0.32`\n- `tomcat = 6.0.33`\n- `tomcat = 6.0.35`\n- `tomcat = 6.0.36`\n- `tomcat = 7.0.0`\n- `tomcat = 7.0.1`\n- `tomcat = 7.0.2`\n- `tomcat = 7.0.3`\n- `tomcat = 7.0.4`\n- `tomcat = 7.0.5`\n- `tomcat = 7.0.6`\n- `tomcat = 7.0.7`\n- `tomcat = 7.0.8`\n- `tomcat = 7.0.9`\n- `tomcat = 7.0.10`\n- `tomcat = 7.0.11`\n- `tomcat = 7.0.12`\n- `tomcat = 7.0.13`\n- `tomcat = 7.0.14`\n- `tomcat = 7.0.15`\n- `tomcat = 7.0.16`\n- `tomcat = 7.0.17`\n- `tomcat = 7.0.18`\n- `tomcat = 7.0.19`\n- `tomcat = 7.0.20`\n- `tomcat = 7.0.21`\n- `tomcat = 7.0.22`\n- `tomcat = 7.0.23`\n- `tomcat = 7.0.25`\n- `tomcat = 7.0.28`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":27.5,"likelihood":2.2,"exploitation":0,"ransomware":0},"changes":[]}