Explain CVE-2018-1336
An improper handing of overflow in the UTF-8 decoder with supplementary characters can lead to an infinite loop in the decoder causing a Denial of Service. Versions Affected: Apache Tomcat 9.0.0.M9 to 9.0.7, 8.5.0 to 8.5.30, 8.0.0.RC1 to 8.0.51, and 7.0.28 to 7.0.86.
Affected Products: Apache Tomcat
References: [{'name': 'USN-3723-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'https://usn.ubuntu.com/3723-1/'}, {'name': '104898', 'tags': ['vdb-entry', 'x_refsource_BID'], 'url': 'http://www.securityfocus.com/bid/104898'}, {'name': 'RHSA-2018:2740', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'https://access.redhat.com/errata/RHSA-2018:2740'}, {'name': 'RHSA-2018:2741', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'https://access.redhat.com/errata/RHSA-2018:2741'}, {'name': 'RHSA-2018:2921', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'https://access.redhat.com/errata/RHSA-2018:2921'}, {'name': 'RHSA-2018:2742', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'https://access.redhat.com/errata/RHSA-2018:2742'}, {'name': 'DSA-4281', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'https://www.debian.org/security/2018/dsa-4281'}, {'name': 'RHSA-2018:2945', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'https://access.redhat.com/errata/RHSA-2018:2945'}, {'name': 'RHSA-2018:2939', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'https://access.redhat.com/errata/RHSA-2018:2939'}, {'name': 'RHSA-2018:2701', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'https://access.redhat.com/errata/RHSA-2018:2701'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://security.netapp.com/advisory/ntap-20180817-0001/'}, {'name': 'RHEA-2018:2188', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'https://access.redhat.com/errata/RHEA-2018:2188'}, {'name': '[www-announce] 20180722 [SECURITY] CVE-2018-1336 Apache Tomcat - Denial of Service', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://mail-archives.us.apache.org/mod_mbox/www-announce/201807.mbox/%3C20180722090435.GA60759%40minotaur.apache.org%3E'}, {'name': 'RHEA-2018:2189', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'https://access.redhat.com/errata/RHEA-2018:2189'}, {'name': 'RHSA-2018:2743', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'https://access.redhat.com/errata/RHSA-2018:2743'}, {'name': 'RHSA-2018:2700', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'https://access.redhat.com/errata/RHSA-2018:2700'}, {'name': '[debian-lts-announce] 20180902 [SECURITY] [DLA 1491-1] tomcat8 security update', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.debian.org/debian-lts-announce/2018/09/msg00001.html'}, {'name': 'RHSA-2018:3768', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'https://access.redhat.com/errata/RHSA-2018:3768'}, {'name': 'RHSA-2018:2930', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'https://access.redhat.com/errata/RHSA-2018:2930'}, {'name': '1041375', 'tags': ['vdb-entry', 'x_refsource_SECTRACK'], 'url': 'http://www.securitytracker.com/id/1041375'}, {'name': '[tomcat-dev] 20190319 svn commit: r1855831 [24/30] - in /tomcat/site/trunk: ./ docs/ xdocs/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/eb6efa8d59c45a7a9eff94c4b925467d3b3fec8ba7697f3daa314b04%40%3Cdev.tomcat.apache.org%3E'}, {'name': '[tomcat-dev] 20190319 svn commit: r1855831 [25/30] - in /tomcat/site/trunk: ./ docs/ xdocs/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E'}, {'name': '[tomcat-dev] 20190325 svn commit: r1856174 [22/29] - in /tomcat/site/trunk: docs/ xdocs/ xdocs/stylesheets/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708%40%3Cdev.tomcat.apache.org%3E'}, {'name': '[tomcat-dev] 20190325 svn commit: r1856174 [23/29] - in /tomcat/site/trunk: docs/ xdocs/ xdocs/stylesheets/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/5c0e00fd31efc11e147bf99d0f03c00a734447d3b131ab0818644cdb%40%3Cdev.tomcat.apache.org%3E'}, {'name': '[tomcat-dev] 20190325 svn commit: r1856174 [24/29] - in /tomcat/site/trunk: docs/ xdocs/ xdocs/stylesheets/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E'}, {'name': '[tomcat-dev] 20190413 svn commit: r1857494 [17/20] - in /tomcat/site/trunk: ./ docs/ xdocs/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apache.org%3E'}, {'name': '[tomcat-dev] 20190413 svn commit: r1857496 [3/4] - in /tomcat/site/trunk: ./ docs/ xdocs/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/e85e83e9954f169bbb77b44baae5a33d8de878df557bb32b7f793661%40%3Cdev.tomcat.apache.org%3E'}, {'name': '[tomcat-dev] 20190413 svn commit: r1857494 [16/20] - in /tomcat/site/trunk: ./ docs/ xdocs/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424%40%3Cdev.tomcat.apache.org%3E'}, {'name': '[tomcat-dev] 20190415 svn commit: r1857582 [18/22] - in /tomcat/site/trunk: docs/ xdocs/stylesheets/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/1dd0a59c1295cc08ce4c9e7edae5ad2268acc9ba55adcefa0532e5ba%40%3Cdev.tomcat.apache.org%3E'}, {'name': '[tomcat-dev] 20190415 svn commit: r1857582 [17/22] - in /tomcat/site/trunk: docs/ xdocs/stylesheets/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7%40%3Cdev.tomcat.apache.org%3E'}, {'name': '[tomcat-dev] 20190415 svn commit: r1857582 [19/22] - in /tomcat/site/trunk: docs/ xdocs/stylesheets/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3%40%3Cdev.tomcat.apache.org%3E'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://support.f5.com/csp/article/K73008537?utm_source=f5support&amp%3Butm_medium=RSS'}, {'name': '[tomcat-dev] 20200203 svn commit: r1873527 [24/30] - /tomcat/site/trunk/docs/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9%40%3Cdev.tomcat.apache.org%3E'}, {'name': '[tomcat-dev] 20200203 svn commit: r1873527 [25/30] - /tomcat/site/trunk/docs/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d%40%3Cdev.tomcat.apache.org%3E'}, {'name': '[tomcat-dev] 20200213 svn commit: r1873980 [27/34] - /tomcat/site/trunk/docs/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E'}, {'name': '[tomcat-dev] 20200213 svn commit: r1873980 [28/34] - /tomcat/site/trunk/docs/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a%40%3Cdev.tomcat.apache.org%3E'}, {'name': '[tomcat-dev] 20200213 svn commit: r1873980 [29/34] - /tomcat/site/trunk/docs/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0%40%3Cdev.tomcat.apache.org%3E'}, {'tags': ['x_refsource_MISC'], 'url': 'https://www.oracle.com/security-alerts/cpuapr2020.html'}]
CVE State: PUBLISHED