Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 7 | tomcat6 | 6.0.45+dfsg-1~deb7u1 | DSA-3530-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | tomcat6 | 6.0.39-1ubuntu0.1 | — |
| Ubuntu 14.04 LTS | tomcat7 | 7.0.52-1ubuntu0.1 | USN-2302-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | tomcat +9 | 7.0.42-6.el7_0 | RHSA-2014:0827 |
| RHEL 6 | tomcat6 +8 | 6.0.24-72.el6_5 | RHSA-2014:0865 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat JBoss Web Server 2 | tomcat6 +9 | 6.0.37-20_patch_04.ep6.el5 | RHSA-2014:0834 |
| Red Hat JBoss Web Server 2 | tomcat7 +9 | 7.0.40-11_patch_03.ep6.el6 | RHSA-2014:0835 |
| Red Hat JBoss EAP 6 | jbossweb | 7.3.2-4.Final_redhat_3.1.ep6.el5 | RHSA-2014:0843 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | tomcat +9 | 7.0.42-6.el7_0 | ELSA-2014-0827 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.apache.tomcat:tomcat | < 6.0.40 | 6.0.40 | GHSA-xh5x-j8jf-pcpx |
| Maven | org.apache.tomcat:tomcat | >= 7.0.0, < 7.0.54 | 7.0.54 | GHSA-xh5x-j8jf-pcpx |
| Maven | org.apache.tomcat:tomcat | >= 8.0.0, < 8.0.6 | 8.0.6 | GHSA-xh5x-j8jf-pcpx |
| Maven | org.apache.tomcat:tomcat-util | < 6.0.40 | 6.0.40 | GHSA-xh5x-j8jf-pcpx |
| Maven | org.apache.tomcat:tomcat-util | >= 7.0.0, < 7.0.54 | 7.0.54 | GHSA-xh5x-j8jf-pcpx |
| Maven | org.apache.tomcat:tomcat-util | >= 8.0.0, < 8.0.6 | 8.0.6 | GHSA-xh5x-j8jf-pcpx |
Advisories 8
- RHSA-2014:0843 Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 6.2.4 security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2014:0865 Red Hat Security Advisory: tomcat6 security and bug fix update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2014:0835 Red Hat Security Advisory: Red Hat JBoss Web Server 2.0.1 tomcat7 security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2014:0827 Red Hat Security Advisory: tomcat security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2014:0834 Red Hat Security Advisory: Red Hat JBoss Web Server 2.0.1 tomcat6 security and bug fix update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- DSA-3530-1 tomcat6 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2302-1 tomcat6, tomcat7 vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- ELSA-2014-0827 Moderate: tomcat security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jul 23, 2014
References
- http://advisories.mageia.org/MGASA-2014-0268.html
- 59121 third-party-advisory
- RHSA-2015:0765 vendor-advisory
- 59732 third-party-advisory
- 59835 third-party-advisory
- 20140527 Re: [SECURITY] CVE-2014-0099 Apache Tomcat information disclosure mailing-list
- RHSA-2015:0675 vendor-advisory
- http://www.vmware.com/security/advisories/VMSA-2014-0012.html
- http://www-01.ibm.com/support/docview.wss?uid=swg21681528
- MDVSA-2015:052 vendor-advisory
- RHSA-2015:0720 vendor-advisory
- 20140527 [SECURITY] Re: [SECURITY] CVE-2014-0099 Apache Tomcat information disclosure mailing-list
- 59849 third-party-advisory
- http://linux.oracle.com/errata/ELSA-2014-0865.html
- 67668 vdb-entry
- MDVSA-2015:084 vendor-advisory
- DSA-3530 vendor-advisory
- 59678 third-party-advisory
- HPSBUX03102 vendor-advisory
- 20140527 [SECURITY] CVE-2014-0097 Apache Tomcat information disclosure mailing-list
- http://tomcat.apache.org/security-7.html
- 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities mailing-list
- MDVSA-2015:053 vendor-advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
- HPSBUX03150 vendor-advisory
- FEDORA-2015-2109 vendor-advisory
- http://tomcat.apache.org/security-8.html
- http://www-01.ibm.com/support/docview.wss?uid=swg21678231
- http://tomcat.apache.org/security-6.html
- https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04851013
- http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
- 59873 third-party-advisory
- http://svn.apache.org/viewvc?view=revision&revision=1578814
- 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities mailing-list
- 1030302 vdb-entry
- HPSBOV03503 vendor-advisory
- http://svn.apache.org/viewvc?view=revision&revision=1578812
- http://svn.apache.org/viewvc?view=revision&revision=1580473
- DSA-3447 vendor-advisory
- 60729 third-party-advisory
- 60793 third-party-advisory
- 20140527 [SECURITY] CVE-2014-0097 Apache Tomcat information disclosure mailing-list
- http://www-01.ibm.com/support/docview.wss?uid=swg21680603
- [tomcat-dev] 20190319 svn commit: r1855831 [23/30] - in /tomcat/site/trunk: ./ docs/ xdocs/ mailing-list
- [tomcat-dev] 20190325 svn commit: r1856174 [21/29] - in /tomcat/site/trunk: docs/ xdocs/ xdocs/stylesheets/ mailing-list
- [tomcat-dev] 20190413 svn commit: r1857494 [15/20] - in /tomcat/site/trunk: ./ docs/ xdocs/ mailing-list
- [tomcat-dev] 20190415 svn commit: r1857582 [16/22] - in /tomcat/site/trunk: docs/ xdocs/stylesheets/ mailing-list
- [tomcat-dev] 20200203 svn commit: r1873527 [23/30] - /tomcat/site/trunk/docs/ mailing-list
- [tomcat-dev] 20200213 svn commit: r1873980 [26/34] - /tomcat/site/trunk/docs/ mailing-list