What’s Vulnerable › Vulnerabilities
CVE-2018-1336
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 20.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2018-08-02 · updated 2026-06-17
- Weakness: CWE-835
Description
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: from 7.0.28 through 7.0.86; from 8.0.0 through 8.0.51; from 8.5.0 through 8.5.30; from 9.0.1 through 9.0.7; 8.0.0-rc1, 8.0.0-rc10, 8.0.0-rc2, 8.0.0-rc3, 8.0.0-rc4, 8.0.0-rc5 (+23)
- Canonical Ubuntu Linux: 14.04, 16.04
- Debian Linux: 8.0, 9.0
- RedHat Enterprise Linux Desktop: 7.0
- RedHat Enterprise Linux Server: 7.0
- RedHat Enterprise Linux Workstation: 7.0
- Red Hat JBoss EAP: 6.0.0, 6.4.0
- Red Hat JBoss Enterprise Web Server: 3.0.0, 5.0.0
References
- http://mail-archives.us.apache.org/mod_mbox/www-announce/201807.mbox/%3C20180722090435.GA60759%40minotaur.apache.org%3E
- http://www.securityfocus.com/bid/104898
- http://www.securitytracker.com/id/1041375
- https://access.redhat.com/errata/RHEA-2018:2188
- https://access.redhat.com/errata/RHEA-2018:2189
- https://access.redhat.com/errata/RHSA-2018:2700
- https://access.redhat.com/errata/RHSA-2018:2701
- https://access.redhat.com/errata/RHSA-2018:2740
- https://access.redhat.com/errata/RHSA-2018:2741
- https://access.redhat.com/errata/RHSA-2018:2742
- https://access.redhat.com/errata/RHSA-2018:2743
- https://access.redhat.com/errata/RHSA-2018:2921
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