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  5. CVE-2018-1336

CVE-2018-1336: Loop with Unreachable Exit Condition ('Infinite Loop')

October 17, 2018 (updated September 14, 2021)

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.

References

  • mail-archives.us.apache.org/mod_mbox/www-announce/201807.mbox/%3C20180722090435.GA60759%40minotaur.apache.org%3E
  • www.securityfocus.com/bid/104898
  • www.securitytracker.com/id/1041375
  • access.redhat.com/errata/RHEA-2018:2188
  • access.redhat.com/errata/RHEA-2018:2189
  • access.redhat.com/errata/RHSA-2018:2700
  • access.redhat.com/errata/RHSA-2018:2701
  • access.redhat.com/errata/RHSA-2018:2740
  • access.redhat.com/errata/RHSA-2018:2741
  • access.redhat.com/errata/RHSA-2018:2742
  • access.redhat.com/errata/RHSA-2018:2743
  • access.redhat.com/errata/RHSA-2018:2921
  • access.redhat.com/errata/RHSA-2018:2930
  • access.redhat.com/errata/RHSA-2018:2939
  • access.redhat.com/errata/RHSA-2018:2945
  • access.redhat.com/errata/RHSA-2018:3768
  • github.com/advisories/GHSA-m59c-jpc8-m2x4
  • lists.apache.org/thread.html/1dd0a59c1295cc08ce4c9e7edae5ad2268acc9ba55adcefa0532e5ba@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/5c0e00fd31efc11e147bf99d0f03c00a734447d3b131ab0818644cdb@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/e85e83e9954f169bbb77b44baae5a33d8de878df557bb32b7f793661@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/eb6efa8d59c45a7a9eff94c4b925467d3b3fec8ba7697f3daa314b04@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a@%3Cdev.tomcat.apache.org%3E
  • lists.debian.org/debian-lts-announce/2018/09/msg00001.html
  • nvd.nist.gov/vuln/detail/CVE-2018-1336
  • security.netapp.com/advisory/ntap-20180817-0001/
  • support.f5.com/csp/article/K73008537?utm_source=f5support&utm_medium=RSS
  • usn.ubuntu.com/3723-1/
  • www.debian.org/security/2018/dsa-4281
  • www.oracle.com/security-alerts/cpuapr2020.html

Code Behaviors & Features

Detect and mitigate CVE-2018-1336 with GitLab Dependency Scanning

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Affected versions

All versions starting from 9.0.0 up to 9.0.7, all versions starting from 8.5.0 before 8.5.31, all versions starting from 8.0.0 before 8.0.51, all versions starting from 7.0.28 before 7.0.87

Fixed versions

  • 9.0.8
  • 9.0.8
  • 9.0.8
  • 9.0.8
  • 8.0.51
  • 7.0.87

Solution

Upgrade to versions 9.0.8, 9.0.8, 9.0.8, 9.0.8, 8.0.51, 7.0.87 or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Weakness

  • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

Source file

maven/org.apache.tomcat.embed/tomcat-embed-core/CVE-2018-1336.yml

Spotted a mistake? Edit the file on GitLab.

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