Vulnerability identifier: #VU64543
Vulnerability risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Apache Tomcat
Server applications /
Web servers
Vendor: Apache Foundation
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to Apache Tomcat processes chunked transfer coding without properly handling a large total amount of chunked data or whitespace characters in an HTTP header value within a trailer field. A remote attacker can cause a denial of service by streaming data.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Apache Tomcat: 6.0.0 - 6.0.38, 7.0.0 - 7.0.49, 8.0.0 RC1 - 8.0.0
External links
https://advisories.mageia.org/MGASA-2014-0148.html
https://marc.info/?l=bugtraq&m=144498216801440&w=2
https://seclists.org/fulldisclosure/2014/Dec/23
https://secunia.com/advisories/59036
https://secunia.com/advisories/59675
https://secunia.com/advisories/59722
https://secunia.com/advisories/59724
https://secunia.com/advisories/59873
https://svn.apache.org/viewvc?view=revision&revision=1521834
https://svn.apache.org/viewvc?view=revision&revision=1521864
https://svn.apache.org/viewvc?view=revision&revision=1549522
https://svn.apache.org/viewvc?view=revision&revision=1549523
https://svn.apache.org/viewvc?view=revision&revision=1556540
https://tomcat.apache.org/security-6.html
https://tomcat.apache.org/security-7.html
https://tomcat.apache.org/security-8.html
https://www.debian.org/security/2016/dsa-3530
https://www.mandriva.com/security/advisories?name=MDVSA-2015:052
https://www.mandriva.com/security/advisories?name=MDVSA-2015:084
https://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
https://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
https://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html
https://www.securityfocus.com/archive/1/534161/100/0/threaded
https://www.securityfocus.com/bid/65767
https://www.ubuntu.com/usn/USN-2130-1
https://www.vmware.com/security/advisories/VMSA-2014-0008.html
https://www.vmware.com/security/advisories/VMSA-2014-0012.html
https://www-01.ibm.com/support/docview.wss?uid=swg21667883
https://www-01.ibm.com/support/docview.wss?uid=swg21675886
https://www-01.ibm.com/support/docview.wss?uid=swg21677147
https://www-01.ibm.com/support/docview.wss?uid=swg21678113
https://www-01.ibm.com/support/docview.wss?uid=swg21678231
https://bugzilla.redhat.com/show_bug.cgi?id=1069905
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04851013
https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b@%3Cdev.tomcat.apache.org%3E
https://rhn.redhat.com/errata/RHSA-2014-0686.html
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.