Vulnerability	Vulnerable Version
H NULL Pointer Dereference Affected versions of this package are vulnerable to NULL Pointer Dereference and out-of-bounds read in the native XXHash implementations reached through `XXHashFactory.nativeInstance()`, where `SafeUtils.checkRange()` skips all array validation when `len == 0` and lets invalid references or ranges reach the JNI code. An attacker can crash the JVM, and expose in-process memory before the crash, by passing a null array with zero length or an oversized length to the native `hash32()`, `hash64()`, or streaming `update()` methods, which then read outside the array bounds in native code. Exploitation requires the application to let the attacker influence the array reference or the offset and length arguments to a native XXHash call, not merely the contents of a valid array, and only the native JNI instances are affected. How to fix NULL Pointer Dereference? Upgrade `at.yawk.lz4:lz4-java` to version 1.11.1 or higher.	[,1.11.1)

NULL Pointer Dereference

Affected versions of this package are vulnerable to NULL Pointer Dereference and out-of-bounds read in the native XXHash implementations reached through XXHashFactory.nativeInstance(), where SafeUtils.checkRange() skips all array validation when len == 0 and lets invalid references or ranges reach the JNI code. An attacker can crash the JVM, and expose in-process memory before the crash, by passing a null array with zero length or an oversized length to the native hash32(), hash64(), or streaming update() methods, which then read outside the array bounds in native code. Exploitation requires the application to let the attacker influence the array reference or the offset and length arguments to a native XXHash call, not merely the contents of a valid array, and only the native JNI instances are affected.

How to fix NULL Pointer Dereference?

Upgrade at.yawk.lz4:lz4-java to version 1.11.1 or higher.

[,1.11.1)

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