CVE-2023-36478 (High) detected in jetty-http-11.0.15.jar

[mend-bolt-for-github[bot]]

CVE-2023-36478 - High Severity Vulnerability

Vulnerable Library - jetty-http-11.0.15.jar

Library home page: https://eclipse.org/jetty

Path to dependency file: /pom.xml

Path to vulnerable library: /pom.xml

Dependency Hierarchy:

• jetty-server-11.0.15.jar (Root Library)
  • :x: jetty-http-11.0.15.jar (Vulnerable Library)

Found in base branch: main

Vulnerability Details

Eclipse Jetty provides a web server and servlet container. In versions 11.0.0 through 11.0.15, 10.0.0 through 10.0.15, and 9.0.0 through 9.4.52, an integer overflow in MetaDataBuilder.checkSize allows for HTTP/2 HPACK header values to exceed their size limit. MetaDataBuilder.java determines if a header name or value exceeds the size limit, and throws an exception if the limit is exceeded. However, when length is very large and huffman is true, the multiplication by 4 in line 295 will overflow, and length will become negative. (_size+length) will now be negative, and the check on line 296 will not be triggered. Furthermore, MetaDataBuilder.checkSize allows for user-entered HPACK header value sizes to be negative, potentially leading to a very large buffer allocation later on when the user-entered size is multiplied by 2. This means that if a user provides a negative length value (or, more precisely, a length value which, when multiplied by the 4/3 fudge factor, is negative), and this length value is a very large positive number when multiplied by 2, then the user can cause a very large buffer to be allocated on the server. Users of HTTP/2 can be impacted by a remote denial of service attack. The issue has been fixed in versions 11.0.16, 10.0.16, and 9.4.53. There are no known workarounds.

Publish Date: 2023-10-10

URL: CVE-2023-36478

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://github.com/eclipse/jetty.project/security/advisories/GHSA-wgh7-54f2-x98r

Release Date: 2023-10-10

Fix Resolution (org.eclipse.jetty:jetty-http): 11.0.16

Direct dependency fix Resolution (org.eclipse.jetty:jetty-server): 11.0.16

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