Description
Nerdbank.MessagePack is a NativeAOT-compatible MessagePack serialization library. Prior to 1.1.62, Nerdbank.MessagePack contains an uncontrolled stack allocation vulnerability in DateTime decoding. A malicious MessagePack payload can declare an oversized timestamp extension length, causing the reader to allocate an attacker-controlled number of bytes on the stack. This can trigger a StackOverflowException, which is not catchable by user code and terminates the process. This vulnerability is fixed in 1.1.62.
Problem types
CWE-789: Memory Allocation with Excessive Size Value
Product status
References
github.com/...gePack/security/advisories/GHSA-2cwq-pwfr-wcw3
github.com/AArnott/Nerdbank.MessagePack/pull/941
github.com/...ommit/7d1eb319cfabe7280e70699946c9a48579fa2f30
github.com/AArnott/Nerdbank.MessagePack/releases/tag/v1.1.62