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CVE-2017-5651

CRITICAL

Expected Behavior Violation in Apache Tomcat

Published May 13, 2022Updated April 18, 2024Source: osv

Summary

In Apache Tomcat 9.0.0.M1 to 9.0.0.M18 and 8.5.0 to 8.5.12, the refactoring of the HTTP connectors introduced a regression in the send file processing. If the send file processing completed quickly, it was possible for the Processor to be added to the processor cache twice. This could result in the same Processor being used for multiple requests which in turn could lead to unexpected errors and/or response mix-up.

Remediation

Upgrade to the fixed version using your package manager.

Maven
Update org.apache.tomcat.embed:tomcat-embed-core to 8.5.13 or later
<!-- Update pom.xml dependency version to 8.5.13 for org.apache.tomcat.embed:tomcat-embed-core -->
Maven
Update org.apache.tomcat:tomcat-coyote to 8.5.13 or later
<!-- Update pom.xml dependency version to 8.5.13 for org.apache.tomcat:tomcat-coyote -->
Maven
Update org.apache.tomcat:tomcat-coyote to 9.0.0.M19 or later
<!-- Update pom.xml dependency version to 9.0.0.M19 for org.apache.tomcat:tomcat-coyote -->
Maven
Update org.apache.tomcat.embed:tomcat-embed-core to 9.0.0.M19 or later
<!-- Update pom.xml dependency version to 9.0.0.M19 for org.apache.tomcat.embed:tomcat-embed-core -->

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (4)

PackageEcosystemAffectedFixed In
org.apache.tomcat.embed:tomcat-embed-core
maven
8.5.0, 8.5.11, 8.5.12, 8.5.2 (+6 more)8.5.13
org.apache.tomcat:tomcat-coyote
maven
8.5.0, 8.5.11, 8.5.12, 8.5.2 (+6 more)8.5.13
org.apache.tomcat:tomcat-coyote
maven
9.0.0.M1, 9.0.0.M10, 9.0.0.M11, 9.0.0.M13 (+8 more)9.0.0.M19
org.apache.tomcat.embed:tomcat-embed-core
maven
9.0.0.M1, 9.0.0.M10, 9.0.0.M11, 9.0.0.M13 (+8 more)9.0.0.M19

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2017-5651?
Expected Behavior Violation in Apache Tomcat This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2017-5651?
CVE-2017-5651 affects org.apache.tomcat.embed:tomcat-embed-core and org.apache.tomcat:tomcat-coyote. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2017-5651 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-9hg2-395j-83rm

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