Deserialization of Untrusted Data Affecting litedb package, versions [,5.0.13)


Severity

Recommended
0.0
critical
0
10

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

Threat Intelligence

EPSS
0.3% (69th percentile)

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  • Snyk IDSNYK-DOTNET-LITEDB-3331936
  • published26 Feb 2023
  • disclosed24 Feb 2023
  • creditUnknown

Introduced: 24 Feb 2023

CVE-2022-23535  (opens in a new tab)
CWE-502  (opens in a new tab)

How to fix?

Upgrade LiteDB to version 5.0.13 or higher.

Overview

LiteDB is an Embedded NoSQL database for .NET

Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the Deserialize() function in BsonMapper.Deserialize.cs. This allows users to send and deserialize a string using the special _type type.

NOTE: After upgrading to the fixed version, care must still be taken when using the Object type to avoid all unintended deserialization.

Details

Serialization is a process of converting an object into a sequence of bytes which can be persisted to a disk or database or can be sent through streams. The reverse process of creating object from sequence of bytes is called deserialization. Serialization is commonly used for communication (sharing objects between multiple hosts) and persistence (store the object state in a file or a database). It is an integral part of popular protocols like Remote Method Invocation (RMI), Java Management Extension (JMX), Java Messaging System (JMS), Action Message Format (AMF), Java Server Faces (JSF) ViewState, etc.

Deserialization of untrusted data (CWE-502) is when the application deserializes untrusted data without sufficiently verifying that the resulting data will be valid, thus allowing the attacker to control the state or the flow of the execution.

CVSS Scores

version 3.1