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Vulnerability record · CVE-2012-4534 · published 19 December 2012

CVE-2012-4534: Apache tomcat vulnerability

Apache · Tomcat

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.

2.6 CVSS 2.0 Low EPSS 7.5% · top 5.7% CWE-399 · CWE-399
2.6CVSS 2.0 base score
7.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
38References, 2 tagged exploit
16 Jun 2026Last modified by NVD

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.

AV:N/AC:H/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://archives.neohapsis.com/archives/bugtraq/2012-12/0043.html
http://lists.opensuse.org/opensuse-updates/2013-01/msg00051.html
http://lists.opensuse.org/opensuse-updates/2013-01/msg00061.html
http://lists.opensuse.org/opensuse-updates/2013-01/msg00080.html
http://marc.info/?l=bugtraq&m=136612293908376&w=2
http://marc.info/?l=bugtraq&m=139344343412337&w=2
http://rhn.redhat.com/errata/RHSA-2013-0623.html
http://secunia.com/advisories/57126
http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/java/org/apache/tomcat/util/net/NioEndpoint.java?r1=1340218&r2=1340217 Patch
http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/webapps/docs/changelog.xml?r1=1340218&r2=1340217&pathrev=1340218 Patch
http://svn.apache.org/viewvc?view=revision&revision=1340218
http://tomcat.apache.org/security-6.html Vendor Advisory
http://tomcat.apache.org/security-7.html Vendor Advisory
http://www.securityfocus.com/bid/56813
http://www.securitytracker.com/id?1027836
http://www.ubuntu.com/usn/USN-1685-1
https://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03748878
https://issues.apache.org/bugzilla/show_bug.cgi?id=52858 Exploit
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19398
http://archives.neohapsis.com/archives/bugtraq/2012-12/0043.html
http://lists.opensuse.org/opensuse-updates/2013-01/msg00051.html
http://lists.opensuse.org/opensuse-updates/2013-01/msg00061.html
http://lists.opensuse.org/opensuse-updates/2013-01/msg00080.html
http://marc.info/?l=bugtraq&m=136612293908376&w=2
http://marc.info/?l=bugtraq&m=139344343412337&w=2
http://rhn.redhat.com/errata/RHSA-2013-0623.html
http://secunia.com/advisories/57126
http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/java/org/apache/tomcat/util/net/NioEndpoint.java?r1=1340218&r2=1340217 Patch
http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/webapps/docs/changelog.xml?r1=1340218&r2=1340217&pathrev=1340218 Patch
http://svn.apache.org/viewvc?view=revision&revision=1340218
http://tomcat.apache.org/security-6.html Vendor Advisory
http://tomcat.apache.org/security-7.html Vendor Advisory
http://www.securityfocus.com/bid/56813
http://www.securitytracker.com/id?1027836
http://www.ubuntu.com/usn/USN-1685-1
https://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03748878
https://issues.apache.org/bugzilla/show_bug.cgi?id=52858 Exploit
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19398

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Source: NIST National Vulnerability Database (record CVE-2012-4534), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.