CVE-2021-29508

Critical

Description

Due to how Wire handles type information in its serialization format, malicious payloads can be passed to a deserializer. e.g. using a surrogate on the sender end, an attacker can pass information about a different type for the receiving end. And by doing so allowing the serializer to create any type on the deserializing end. This is the same issue that exists for .NET BinaryFormatter https://docs.microsoft.com/en-us/visualstudio/code-quality/ca2300?view=vs-2019. This also applies to the fork of Wire.

SeverityCritical
CVSS9.1
Exploit probability76. percentile1.6%
ProductAsynkron Wire
PublishedMay 11, 2021
First seenMay 11, 2021

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
asynkron wireNo range specified—
WireNuGetv ≤ 1.0.0—

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