CVE-2020-8908 (Medium) detected in multiple libraries

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CVE-2020-8908 - Medium Severity Vulnerability

Vulnerable Libraries - guava-19.0.jar, guava-16.0.1.jar, guava-20.0.jar

guava-19.0.jar

Guava is a suite of core and expanded libraries that include utility classes, google's collections, io classes, and much much more.

Guava has only one code dependency - javax.annotation,
per the JSR-305 spec.</p>

Library home page: https://github.com/google/guava

Path to vulnerable library: /root/.gradle/caches/modules-2/files-2.1/com.google.guava/guava/19.0/6ce200f6b23222af3d8abb6b6459e6c44f4bb0e9/guava-19.0.jar,/root/.gradle/caches/modules-2/files-2.1/com.google.guava/guava/19.0/6ce200f6b23222af3d8abb6b6459e6c44f4bb0e9/guava-19.0.jar

Dependency Hierarchy:

• checkstyle-7.7.jar (Root Library)
  • ❌ guava-19.0.jar (Vulnerable Library)

guava-16.0.1.jar

Guava is a suite of core and expanded libraries that include utility classes, google's collections, io classes, and much much more.

Guava has only one code dependency - javax.annotation,
per the JSR-305 spec.</p>

Library home page: http://code.google.com/p/guava-libraries

Path to vulnerable library: /tmp/ws-ua_20200424204542/downloadResource_1215251d-2eb2-4bd9-a5f4-7f2ee52626ee/20200424205133/guava-16.0.1.jar,/tmp/ws-ua_20200424204542/downloadResource_1215251d-2eb2-4bd9-a5f4-7f2ee52626ee/20200424205133/guava-16.0.1.jar

Dependency Hierarchy:

• jimfs-1.0.jar (Root Library)
  • ❌ guava-16.0.1.jar (Vulnerable Library)

guava-20.0.jar

Guava is a suite of core and expanded libraries that include utility classes, google's collections, io classes, and much much more.

Guava has only one code dependency - javax.annotation,
per the JSR-305 spec.</p>

Library home page: https://github.com/google/guava

Path to dependency file: wire/wire-java-generator/build.gradle

Path to vulnerable library: le/caches/modules-2/files-2.1/com.google.guava/guava/20.0/89507701249388e1ed5ddcf8c41f4ce1be7831ef/guava-20.0.jar,le/caches/modules-2/files-2.1/com.google.guava/guava/20.0/89507701249388e1ed5ddcf8c41f4ce1be7831ef/guava-20.0.jar,/root/.gradle/caches/modules-2/files-2.1/com.google.guava/guava/20.0/89507701249388e1ed5ddcf8c41f4ce1be7831ef/guava-20.0.jar

Dependency Hierarchy:

• jimfs-1.0.jar (Root Library)
  • ❌ guava-20.0.jar (Vulnerable Library)

Vulnerability Details

A temp directory creation vulnerability exist in Guava versions prior to 30.0 allowing an attacker with access to the machine to potentially access data in a temporary directory created by the Guava com.google.common.io.Files.createTempDir(). The permissions granted to the directory created default to the standard unix-like /tmp ones, leaving the files open. We recommend updating Guava to version 30.0 or later, or update to Java 7 or later, or to explicitly change the permissions after the creation of the directory if neither are possible.

Publish Date: 2020-12-10

URL: CVE-2020-8908

CVSS 3 Score Details (6.5)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8908

Release Date: 2020-12-10

Fix Resolution: v30.0