CVE-2020-8908

Description

A temp directory creation vulnerability exists in all versions of Guava, allowing an attacker with access to the machine to potentially access data in a temporary directory created by the Guava API com.google.common.io.Files.createTempDir(). By default, on unix-like systems, the created directory is world-readable (readable by an attacker with access to the system). The method in question has been marked @Deprecated in versions 30.0 and later and should not be used. For Android developers, we recommend choosing a temporary directory API provided by Android, such as context.getCacheDir(). For other Java developers, we recommend migrating to the Java 7 API java.nio.file.Files.createTempDirectory() which explicitly configures permissions of 700, or configuring the Java runtime's java.io.tmpdir system property to point to a location whose permissions are appropriately configured.

How to fix CVE-2020-8908

To remediate CVE-2020-8908, upgrade the affected package to a fixed version below.

• —no fix listed
• —upgrade to 32.0.0-android or later

Is CVE-2020-8908 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• from 0
• from 0, < 32.0.0-android

CVSS scores

References (83)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2020-8908
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2020-8908
• PATCHgithub.com/google/guava
• WEBgithub.com/google/guava/commit/feb83a1c8fd2e7670b244d5afd23cba5aca43284