MessagePack-CSharp: InterfaceLookupFormatter bypasses collision-resistant comparer settings
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MessagePack-CSharp | MessagePack-CSharp | affected |
|
Configuration 1 [-]
|
No data.
| Vendor | Product | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Messagepack | Messagepack-csharp |
|
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-q2h6-ghwm-5qm8 | MessagePack-CSharp: InterfaceLookupFormatter bypasses collision-resistant comparer settings |
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.405% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Messagepack
Messagepack messagepack-csharp |
|
| Vendors & Products |
Messagepack
Messagepack messagepack-csharp |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | MessagePack-CSharp: InterfaceLookupFormatter bypasses collision-resistant comparer settings | |
| Weaknesses | CWE-407 | |
| References |
| |
| Metrics |
cvssV4_0
|