Description (CNA)
MessagePack for C# is a MessagePack serializer for C#. Prior to 2.5.301 and 3.1.7, MessagePackReader.ReadDateTime() can allocate stack memory based on an attacker-controlled MessagePack extension length. In the slow path for timestamp extension parsing, the computed tokenSize includes the extension body length from the wire and is used in a stackalloc operation before the extension length is validated as one of the valid timestamp sizes. A very small payload can claim a large timestamp extension body and cause a stack allocation large enough to trigger an uncatchable StackOverflowException, terminating the host process. This vulnerability is fixed in 2.5.301 and 3.1.7.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| MessagePack-CSharp / MessagePack-CSharp | affected >= 3.1.7, < 3.1.7; affected < 2.5.301 |
CWE
CWE-125, CWE-190, CWE-407, CWE-409, CWE-470, CWE-502, CWE-674, CWE-789, CWE-1188
References
ADP enrichment
No English description supplied.
No references supplied.