CVE-2021-33806 Deserialization in n/a
Remote attackers can execute arbitrary code by sending malicious serialized data to applications using the BdLib library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-33806?
CVE-2021-33806 is a critical unsafe deserialization vulnerability in n/a, published on 3 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The BDew BdLib library before 1.16.1.7 for Minecraft allows remote code execution because it deserializes untrusted data in ObjectInputStream.readObject as part of its use of Java serialization.
Weakness: CWE-502
Which versions are affected by CVE-2021-33806?
It affects 1 product.
Products include Bdew Bdlib.
How do I fix CVE-2021-33806?
No fix has been published for CVE-2021-33806 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2021-33806 being exploited?
There is no known exploitation of CVE-2021-33806 in the wild and no public exploit code.
Sources
Also known as GHSA-8ww6-p355-pvjq.