Description (CNA)
MessagePack for C# is a MessagePack serializer for C#. Prior to 2.5.301 and 3.1.7, InterfaceLookupFormatter<TKey,TElement> constructs an internal Dictionary<TKey, IGrouping<TKey,TElement>> with the default equality comparer instead of the security-aware comparer supplied by options.Security.GetEqualityComparer<TKey>(). This formatter omission allows hash-collision CPU denial of service against ILookup<TKey,TElement> even when the application has opted into the untrusted-data security posture This vulnerability is fixed in 2.5.301 and 3.1.7.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| MessagePack-CSharp / MessagePack-CSharp | affected >= 3.0, < 3.1.7; affected < 2.5.301 |
CWE
CWE-407
References
ADP enrichment
No English description supplied.
No references supplied.