UTF-8 Decoder Vulnerability in Apache Tomcat
CVE-2018-1336

7.5HIGH

Key Information:

Vendor

Apache
Status
Apache Tomcat
Vendor
CVE Published:
2 August 2018

What is CVE-2018-1336?

An improper handling of overflow in the UTF-8 decoder can result in an infinite loop, potentially leading to a Denial of Service condition. This vulnerability affects specific versions of Apache Tomcat, rendering systems unable to respond to valid requests, and may allow attackers to disrupt service availability.

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Deploy the Patch

Affected Version(s)

Apache Tomcat 9.0.0.M9 to 9.0.7

Apache Tomcat 8.5.0 to 8.5.30

Apache Tomcat 8.0.0.RC1 to 8.0.51

References

https://usn.ubuntu.com/3723-1/
vendor-advisoryx_refsource_UBUNTU
http://www.securityfocus.com/bid/104898
vdb-entryx_refsource_BID
https://access.redhat.com/errata/RHSA-2018:2740
vendor-advisoryx_refsource_REDHAT

EPSS Score

15% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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