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Apache Tomcat allows remote attackers to read data that was intended to be associated with a different request

High severity GitHub Reviewed Published May 14, 2022 to the GitHub Advisory Database • Updated Oct 15, 2024

Package

maven org.apache.tomcat:tomcat (Maven)

Affected versions

>= 8.5.7, <= 8.5.9
>= 9.0.0.M11, <= 9.0.0.M15

Patched versions

8.5.10
9.0.0.M16

Description

An information disclosure issue was discovered in Apache Tomcat 8.5.7 to 8.5.9 and 9.0.0.M11 to 9.0.0.M15 in reverse-proxy configurations. Http11InputBuffer.java allows remote attackers to read data that was intended to be associated with a different request.

References

Published by the National Vulnerability Database Mar 14, 2017
Published to the GitHub Advisory Database May 14, 2022
Reviewed Dec 8, 2023
Last updated Oct 15, 2024

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS score

0.189%
(57th percentile)

Weaknesses

CVE ID

CVE-2016-8747

GHSA ID

GHSA-fjwp-r6fm-q6qw

Source code

Credits

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