MessagePack-CSharp: Multi-dimensional array formatters allocate from unchecked dimensions
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-cxmj-83gh-fp49 | MessagePack-CSharp: Multi-dimensional array formatters allocate from unchecked dimensions |
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, MessagePack-CSharp's multi-dimensional array formatters read dimension lengths directly from the payload and allocate T[,], T[,,], or T[,,,] before validating that the dimension product matches the encoded element count. The formatter reads a guarded element array header, but allocation of the target multi-dimensional array happens before the dimensions are checked against that element count. A small payload can therefore declare large dimensions, provide an empty or tiny inner array, and cause a large heap allocation before element data is validated. This vulnerability is fixed in 2.5.301 and 3.1.7. | |
| Title | MessagePack-CSharp: Multi-dimensional array formatters allocate from unchecked dimensions | |
| Weaknesses | CWE-770 | |
| References |
| |
| Metrics |
cvssV4_0
|