Integer overflow in java/org/apache/tomcat/util/buf/Ascii.java in Apache Tomcat before 6.0.40, 7.x before 7.0.53, and 8.x before 8.0.4, when operated behind a reverse proxy, allows remote attackers to conduct HTTP request smuggling attacks via a crafted Content-Length HTTP header.
Fix
Patch, vendor advisory and mitigation references on NVD 6
- 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://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
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 4.3 · apacheNVD modified 2026-10-14 17:17
Affected (CPE criteria) 107
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:6:*:*:*:*:*:*:*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:6.0.1:alpha:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:6.0.2:*:*:*:*:*:*:*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:6.0.4:*:*:*:*:*:*:*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: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:6.0.20:*:*:*:*:*:*:*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:6.0.30:*:*:*:*:*:*:*- and 67 more
References 98
- http://advisories.mageia.org/MGASA-2014-0268.html
- http://linux.oracle.com/errata/ELSA-2014-0865.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-February/150282.html
- http://marc.info/?l=bugtraq&m=141017844705317&w=2
- http://marc.info/?l=bugtraq&m=141390017113542&w=2
- http://marc.info/?l=bugtraq&m=144498216801440&w=2
- http://rhn.redhat.com/errata/RHSA-2015-0675.html
- http://rhn.redhat.com/errata/RHSA-2015-0720.html
- http://rhn.redhat.com/errata/RHSA-2015-0765.html
- http://seclists.org/fulldisclosure/2014/Dec/23
- http://seclists.org/fulldisclosure/2014/May/138
- http://seclists.org/fulldisclosure/2014/May/140
- http://secunia.com/advisories/59121
- http://secunia.com/advisories/59678
- http://secunia.com/advisories/59732
- http://secunia.com/advisories/59835
- http://secunia.com/advisories/59849
- http://secunia.com/advisories/59873
- http://secunia.com/advisories/60729
- http://secunia.com/advisories/60793
- http://svn.apache.org/viewvc?view=revision&revision=1578812
- http://svn.apache.org/viewvc?view=revision&revision=1578814
- http://svn.apache.org/viewvc?view=revision&revision=1580473
- 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=swg21678231
- http://www-01.ibm.com/support/docview.wss?uid=swg21680603
- http://www-01.ibm.com/support/docview.wss?uid=swg21681528
- http://www.debian.org/security/2016/dsa-3447
- 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-2015:053
- 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.securityfocus.com/archive/1/532218/100/0/threaded
- http://www.securityfocus.com/archive/1/532221/100/0/threaded
- http://www.securityfocus.com/archive/1/534161/100/0/threaded
- http://www.securityfocus.com/bid/67668
- http://www.securitytracker.com/id/1030302
- http://www.vmware.com/security/advisories/VMSA-2014-0012.html
- 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%3E
- https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.org%3E
- http://advisories.mageia.org/MGASA-2014-0268.html
- http://linux.oracle.com/errata/ELSA-2014-0865.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-February/150282.html
- http://marc.info/?l=bugtraq&m=141017844705317&w=2
- http://marc.info/?l=bugtraq&m=141390017113542&w=2
- http://marc.info/?l=bugtraq&m=144498216801440&w=2
- http://rhn.redhat.com/errata/RHSA-2015-0675.html
- http://rhn.redhat.com/errata/RHSA-2015-0720.html
- http://rhn.redhat.com/errata/RHSA-2015-0765.html
- http://seclists.org/fulldisclosure/2014/Dec/23
- http://seclists.org/fulldisclosure/2014/May/138