CVE-2024-36124: iq80 Snappy has an out-of-bounds read when uncompressing data, leading to JVM crash
Summary iq80 Snappy performs out-of-bounds read access when uncompressing certain data, which can lead to a JVM crash.
Details When uncompressing certain data, Snappy tries to read outside the bounds of the given byte arrays. Because Snappy uses the JDK class sun.misc.Unsafe to speed up memory access, no additional bounds checks are performed and this has similar security consequences as out-of-bounds access in C or C++, namely it can lead to non-deterministic behavior or crash the JVM.
iq80 Snappy is not actively maintained anymore. As quick fix users can upgrade to version 0.5, but in the long term users should prefer migrating to the Snappy implementation in https://github.com/airlift/aircompressor (version 0.27 or newer).
Impact When uncompressing data from untrusted users, this can be exploited for a denial-of-service attack by crashing the JVM.
Other sources
iq80 Snappy is a compression/decompression library. When uncompressing certain data, Snappy tries to read outside the bounds of the given byte arrays. Because Snappy uses the JDK class sun.misc.Unsafe to speed up memory access, no additional bounds checks are performed and this has similar security consequences as out-of-bounds access in C or C++, namely it can lead to non-deterministic behavior or crash the JVM. iq80 Snappy is not actively maintained anymore. As quick fix users can upgrade to version 0.5.
— NVD
Snappy is vulnerable to a denial of service, caused by an out-of-bounds read flaw when uncompressing data. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause JVM to crash.
— IBM
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2024-36124?
CVE-2024-36124 is considered to have high severity due to the potential for JVM crashes resulting from out-of-bounds read access.
How do I fix CVE-2024-36124?
To fix CVE-2024-36124, update the iq80 Snappy library to version 0.5 or later.
Which versions of iq80 Snappy are affected by CVE-2024-36124?
Versions of iq80 Snappy below 0.5 are affected by CVE-2024-36124.
Which products are impacted by CVE-2024-36124?
IBM Storage Defender - Resiliency Service versions 2.0.0 to 2.0.9 are impacted by CVE-2024-36124.
What can happen if CVE-2024-36124 is exploited?
Exploitation of CVE-2024-36124 can lead to a crash of the Java Virtual Machine.