// For flags

CVE-2018-1336

tomcat: A bug in the UTF-8 decoder can lead to DoS

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

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.

Una gestión incorrecta del desbordamiento en el decodificador UTF-8 con caracteres suplementarios puede conducir a un bucle infinito en el decodificador, provocando una denegación de servicio (DoS). Versiones afectadas: Apache Tomcat de la versión 9.0.0.M9 a la 9.0.7, de la 8.5.0 a la 8.5.30, de la 8.0.0.RC1 a la 8.0.51 y de la versión 7.0.28 a la 7.0.86.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2017-12-07 CVE Reserved
  • 2018-07-25 CVE Published
  • 2024-11-05 EPSS Updated
  • 2024-11-14 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
CAPEC
References (40)
URL Tag Source
http://www.securityfocus.com/bid/104898 Third Party Advisory
http://www.securitytracker.com/id/1041375 Third Party Advisory
https://lists.apache.org/thread.html/1dd0a59c1295cc08ce4c9e7edae5ad2268acc9ba55adcefa0532e5ba%40%3Cdev.tomcat.apache.org%3E Mailing List
https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E Mailing List
https://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708%40%3Cdev.tomcat.apache.org%3E Mailing List
https://lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7%40%3Cdev.tomcat.apache.org%3E Mailing List
https://lists.apache.org/thread.html/5c0e00fd31efc11e147bf99d0f03c00a734447d3b131ab0818644cdb%40%3Cdev.tomcat.apache.org%3E Mailing List
https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3%40%3Cdev.tomcat.apache.org%3E Mailing List
https://lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424%40%3Cdev.tomcat.apache.org%3E Mailing List
https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apache.org%3E Mailing List
https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E Mailing List
https://lists.apache.org/thread.html/e85e83e9954f169bbb77b44baae5a33d8de878df557bb32b7f793661%40%3Cdev.tomcat.apache.org%3E Mailing List
https://lists.apache.org/thread.html/eb6efa8d59c45a7a9eff94c4b925467d3b3fec8ba7697f3daa314b04%40%3Cdev.tomcat.apache.org%3E Mailing List
https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d%40%3Cdev.tomcat.apache.org%3E Mailing List
https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0%40%3Cdev.tomcat.apache.org%3E Mailing List
https://lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9%40%3Cdev.tomcat.apache.org%3E Mailing List
https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E Mailing List
https://lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a%40%3Cdev.tomcat.apache.org%3E Mailing List
https://lists.debian.org/debian-lts-announce/2018/09/msg00001.html Mailing List
https://security.netapp.com/advisory/ntap-20180817-0001 Third Party Advisory
https://support.f5.com/csp/article/K73008537?utm_source=f5support&amp%3Butm_medium=RSS X_refsource_confirm
https://www.oracle.com/security-alerts/cpuapr2020.html X_refsource_misc
URL Date SRC
URL Date SRC
URL Date SRC
http://mail-archives.us.apache.org/mod_mbox/www-announce/201807.mbox/%3C20180722090435.GA60759%40minotaur.apache.org%3E 2023-12-08
https://access.redhat.com/errata/RHEA-2018:2188 2023-12-08
https://access.redhat.com/errata/RHEA-2018:2189 2023-12-08
https://access.redhat.com/errata/RHSA-2018:2700 2023-12-08
https://access.redhat.com/errata/RHSA-2018:2701 2023-12-08
https://access.redhat.com/errata/RHSA-2018:2740 2023-12-08
https://access.redhat.com/errata/RHSA-2018:2741 2023-12-08
https://access.redhat.com/errata/RHSA-2018:2742 2023-12-08
https://access.redhat.com/errata/RHSA-2018:2743 2023-12-08
https://access.redhat.com/errata/RHSA-2018:2921 2023-12-08
https://access.redhat.com/errata/RHSA-2018:2930 2023-12-08
https://access.redhat.com/errata/RHSA-2018:2939 2023-12-08
https://access.redhat.com/errata/RHSA-2018:2945 2023-12-08
https://access.redhat.com/errata/RHSA-2018:3768 2023-12-08
https://usn.ubuntu.com/3723-1 2023-12-08
https://www.debian.org/security/2018/dsa-4281 2023-12-08
https://access.redhat.com/security/cve/CVE-2018-1336 2018-12-04
https://bugzilla.redhat.com/show_bug.cgi?id=1607591 2018-12-04
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Redhat
Search vendor "Redhat"
 Jboss Enterprise Web Server
Search vendor "Redhat" for product "Jboss Enterprise Web Server"
 3.0.0
Search vendor "Redhat" for product "Jboss Enterprise Web Server" and version "3.0.0"
-
Affected
in Redhat
Search vendor "Redhat"
 Enterprise Linux
Search vendor "Redhat" for product "Enterprise Linux"
 6.0
Search vendor "Redhat" for product "Enterprise Linux" and version "6.0"
-
Safe
Redhat
Search vendor "Redhat"
 Jboss Enterprise Web Server
Search vendor "Redhat" for product "Jboss Enterprise Web Server"
 3.0.0
Search vendor "Redhat" for product "Jboss Enterprise Web Server" and version "3.0.0"
-
Affected
in Redhat
Search vendor "Redhat"
 Enterprise Linux
Search vendor "Redhat" for product "Enterprise Linux"
 7.0
Search vendor "Redhat" for product "Enterprise Linux" and version "7.0"
-
Safe
Redhat
Search vendor "Redhat"
 Jboss Enterprise Web Server
Search vendor "Redhat" for product "Jboss Enterprise Web Server"
 5.0.0
Search vendor "Redhat" for product "Jboss Enterprise Web Server" and version "5.0.0"
-
Affected
in Redhat
Search vendor "Redhat"
 Enterprise Linux
Search vendor "Redhat" for product "Enterprise Linux"
 6.0
Search vendor "Redhat" for product "Enterprise Linux" and version "6.0"
-
Safe
Redhat
Search vendor "Redhat"
 Jboss Enterprise Web Server
Search vendor "Redhat" for product "Jboss Enterprise Web Server"
 5.0.0
Search vendor "Redhat" for product "Jboss Enterprise Web Server" and version "5.0.0"
-
Affected
in Redhat
Search vendor "Redhat"
 Enterprise Linux
Search vendor "Redhat" for product "Enterprise Linux"
 7.0
Search vendor "Redhat" for product "Enterprise Linux" and version "7.0"
-
Safe
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 >= 7.0.28 <= 7.0.86
Search vendor "Apache" for product "Tomcat" and version " >= 7.0.28 <= 7.0.86"
-
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 >= 8.0.0 <= 8.0.51
Search vendor "Apache" for product "Tomcat" and version " >= 8.0.0 <= 8.0.51"
-
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 >= 8.5.0 <= 8.5.30
Search vendor "Apache" for product "Tomcat" and version " >= 8.5.0 <= 8.5.30"
-
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 >= 9.0.1 <= 9.0.7
Search vendor "Apache" for product "Tomcat" and version " >= 9.0.1 <= 9.0.7"
-
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 8.0.0
Search vendor "Apache" for product "Tomcat" and version "8.0.0"
rc1
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 8.0.0
Search vendor "Apache" for product "Tomcat" and version "8.0.0"
rc10
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 8.0.0
Search vendor "Apache" for product "Tomcat" and version "8.0.0"
rc2
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 8.0.0
Search vendor "Apache" for product "Tomcat" and version "8.0.0"
rc3
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 8.0.0
Search vendor "Apache" for product "Tomcat" and version "8.0.0"
rc4
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 8.0.0
Search vendor "Apache" for product "Tomcat" and version "8.0.0"
rc5
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 8.0.0
Search vendor "Apache" for product "Tomcat" and version "8.0.0"
rc6
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 8.0.0
Search vendor "Apache" for product "Tomcat" and version "8.0.0"
rc7
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 8.0.0
Search vendor "Apache" for product "Tomcat" and version "8.0.0"
rc8
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 8.0.0
Search vendor "Apache" for product "Tomcat" and version "8.0.0"
rc9
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone10
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone11
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone12
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone13
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone14
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone15
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone16
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone17
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone18
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone19
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone20
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone21
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone22
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone23
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone24
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone25
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone26
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone27
Affected
Apache
Search vendor "Apache"
 Tomcat
Search vendor "Apache" for product "Tomcat"
 9.0.0
Search vendor "Apache" for product "Tomcat" and version "9.0.0"
milestone9
Affected
Redhat
Search vendor "Redhat"
 Jboss Enterprise Application Platform
Search vendor "Redhat" for product "Jboss Enterprise Application Platform"
 6.0.0
Search vendor "Redhat" for product "Jboss Enterprise Application Platform" and version "6.0.0"
-
Affected
Redhat
Search vendor "Redhat"
 Jboss Enterprise Application Platform
Search vendor "Redhat" for product "Jboss Enterprise Application Platform"
 6.4.0
Search vendor "Redhat" for product "Jboss Enterprise Application Platform" and version "6.4.0"
-
Affected
Canonical
Search vendor "Canonical"
 Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
 14.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"
lts
Affected
Canonical
Search vendor "Canonical"
 Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
 16.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"
lts
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 8.0
Search vendor "Debian" for product "Debian Linux" and version "8.0"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected
Redhat
Search vendor "Redhat"
 Enterprise Linux Desktop
Search vendor "Redhat" for product "Enterprise Linux Desktop"
 7.0
Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "7.0"
-
Affected
Redhat
Search vendor "Redhat"
 Enterprise Linux Server
Search vendor "Redhat" for product "Enterprise Linux Server"
 7.0
Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.0"
-
Affected
Redhat
Search vendor "Redhat"
 Enterprise Linux Workstation
Search vendor "Redhat" for product "Enterprise Linux Workstation"
 7.0
Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "7.0"
-
Affected