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CVE-2018-1336

Published: 24 July 2018

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.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
tomcat7
Launchpad, Ubuntu, Debian
upstream
Released (7.0.72-3)
precise Does not exist

trusty
Released (7.0.52-1ubuntu0.15)
bionic Not vulnerable
(7.0.78-1)
cosmic Not vulnerable

disco Does not exist

eoan Does not exist

focal Does not exist

xenial
Released (7.0.68-1ubuntu0.4+esm1)
impish Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

Patches:
upstream: https://svn.apache.org/r1830376 (7.0.x)



tomcat8.0
Launchpad, Ubuntu, Debian
upstream
Released (8.0.52)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

impish Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

Patches:



upstream: https://svn.apache.org/r1830375 (8.0.x)
tomcat8
Launchpad, Ubuntu, Debian
upstream
Released (8.5.31-1)
precise Does not exist

trusty Does not exist

xenial
Released (8.0.32-1ubuntu1.7)
bionic
Released (8.5.39-1ubuntu1~18.04.1)
cosmic Not vulnerable
(8.5.32-1ubuntu2)
disco Does not exist

eoan Does not exist

focal Does not exist

impish Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

Patches:

upstream: https://svn.apache.org/r1830374 (8.5.x)
upstream: https://svn.apache.org/r1830375 (8.0.x)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H