CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-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.
Severity
- EPSS
- 20% chance of exploitation in the next 30 days; higher than 97% of CVEs (scores of 2026-10-31)
- CWE
- CWE-835
- Published
- Modified
- Record from
- the NVD, synced
Affected
- apache:tomcat
- canonical:ubuntu_linux
- debian:debian_linux
- redhat:enterprise_linux_desktop
- redhat:enterprise_linux_server
- redhat:enterprise_linux_workstation
- redhat:jboss_enterprise_application_platform
- redhat:jboss_enterprise_web_server
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-m59c-jpc8-m2x4 | Maven | org.apache.tomcat.embed:tomcat-embed-core | >=9.0.0.M9 <9.0.8 | 9.0.8 |
| GHSA-m59c-jpc8-m2x4 | Maven | org.apache.tomcat.embed:tomcat-embed-core | >=8.5.0 <8.5.31 | 8.5.31 |
| GHSA-m59c-jpc8-m2x4 | Maven | org.apache.tomcat.embed:tomcat-embed-core | >=8.0.0RC1 <8.0.51 | 8.0.51 |
| GHSA-m59c-jpc8-m2x4 | Maven | org.apache.tomcat.embed:tomcat-embed-core | >=7.0.28 <7.0.87 | 7.0.87 |