Vulnerable Library - snappy-java-1.1.8.4.jar

snappy-java: A fast compression/decompression library

Library home page: https://github.com/xerial/snappy-java

Path to dependency file: /build.gradle

Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/org.xerial.snappy/snappy-java/1.1.8.4/66f0d56454509f6e36175f2331572e250e04a6cc/snappy-java-1.1.8.4.jar

Dependency Hierarchy:

• ❌ snappy-java-1.1.8.4.jar (Vulnerable Library)

Found in HEAD commit: b4413a769a13ddee13ac168bdb4ef94b4248a169

Found in base branch: main

Vulnerability Details

snappy-java is a fast compressor/decompressor for Java. Due to use of an unchecked chunk length, an unrecoverable fatal error can occur in versions prior to 1.1.10.1.

The code in the function hasNextChunk in the fileSnappyInputStream.java checks if a given stream has more chunks to read. It does that by attempting to read 4 bytes. If it wasn’t possible to read the 4 bytes, the function returns false. Otherwise, if 4 bytes were available, the code treats them as the length of the next chunk.

In the case that the compressed variable is null, a byte array is allocated with the size given by the input data. Since the code doesn’t test the legality of the chunkSize variable, it is possible to pass a negative number (such as 0xFFFFFFFF which is -1), which will cause the code to raise a java.lang.NegativeArraySizeException exception. A worse case would happen when passing a huge positive value (such as 0x7FFFFFFF), which would raise the fatal java.lang.OutOfMemoryError error.

Version 1.1.10.1 contains a patch for this issue.

Publish Date: 2023-06-15

URL: CVE-2023-34455

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

Suggested Fix

Type: Upgrade version

Origin: GHSA-qcwq-55hx-v3vh

Release Date: 2023-06-15

Fix Resolution: org.xerial.snappy:snappy-java:1.1.10.1