{"id":"CVE-2012-4534","url":"https://www.cyber-defence.io/tools/cve/CVE-2012-4534","generatedAt":"2026-10-27T18:46:40.814Z","title":"org/apache/tomcat/util/net/NioEndpoint.java in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.28, when the NIO connector is used in conjunction with sendfile and HTTPS, allows remote attackers to cause a denial of service (infinite loop) by…","description":"org/apache/tomcat/util/net/NioEndpoint.java in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.28, when the NIO connector is used in conjunction with sendfile and HTTPS, allows remote attackers to cause a denial of service (infinite loop) by terminating the connection during the reading of a response.","published":"2012-12-19T11:55:55.000Z","lastModified":"2026-10-09T20:17:05.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":2.6,"severity":"LOW","vector":"AV:N/AC:H/Au:N/C:N/I:N/A:P"},"cwe":["CWE-399"],"affected":["apache/tomcat"],"epss":{"score":0.07452,"percentile":0.94417,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (7.45%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://archives.neohapsis.com/archives/bugtraq/2012-12/0043.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-01/msg00051.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-01/msg00061.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-01/msg00080.html","source":"secalert@redhat.com"},{"url":"http://marc.info/?l=bugtraq&m=136612293908376&w=2","source":"secalert@redhat.com"},{"url":"http://marc.info/?l=bugtraq&m=139344343412337&w=2","source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-0623.html","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/57126","source":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/java/org/apache/tomcat/util/net/NioEndpoint.java?r1=1340218&r2=1340217&pathrev=1340218","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/webapps/docs/changelog.xml?r1=1340218&r2=1340217&pathrev=1340218","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc?view=revision&revision=1340218","source":"secalert@redhat.com"},{"url":"http://tomcat.apache.org/security-6.html","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://tomcat.apache.org/security-7.html","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/56813","source":"secalert@redhat.com"},{"url":"http://www.securitytracker.com/id?1027836","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1685-1","source":"secalert@redhat.com"},{"url":"https://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03748878","source":"secalert@redhat.com"},{"url":"https://issues.apache.org/bugzilla/show_bug.cgi?id=52858","tags":["Exploit"],"source":"secalert@redhat.com"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19398","source":"secalert@redhat.com"},{"url":"http://archives.neohapsis.com/archives/bugtraq/2012-12/0043.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-01/msg00051.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-01/msg00061.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-01/msg00080.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=bugtraq&m=136612293908376&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=bugtraq&m=139344343412337&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-0623.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/57126","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/java/org/apache/tomcat/util/net/NioEndpoint.java?r1=1340218&r2=1340217&pathrev=1340218","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/webapps/docs/changelog.xml?r1=1340218&r2=1340217&pathrev=1340218","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://svn.apache.org/viewvc?view=revision&revision=1340218","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://tomcat.apache.org/security-6.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://tomcat.apache.org/security-7.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/56813","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id?1027836","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1685-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03748878","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://issues.apache.org/bugzilla/show_bug.cgi?id=52858","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19398","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2012-4534","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}