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GHSA-72fp-w44g-625q
No affected components available
Impact
This advisory addresses an issue when a DynamoDB Set attribute is marked as SIGN_ONLY in the AWS Database Encryption SDK (DB-ESDK) for DynamoDB. This also includes when a Set is part of a List or a Map.
DB-ESDK for DynamoDB supports SIGN_ONLY and ENCRYPT_AND_SIGN attribute actions. In version 3.1.0 and below, when a Set type is assigned a SIGN_ONLY attribute action, there is a chance that signature validation of the record containing a Set will fail on read, even if the Set attributes contain the same values. The probability of a failure depends on the order of the elements in the Set combined with how DynamoDB returns this data, which is undefined.
This update addresses the issue by ensuring that any Set values are canonicalized in the same order while written to DynamoDB as when read back from DynamoDB.
Patches
Fixed in version 3.1.1 We recommend all users upgrade as soon as possible.
Workarounds
None
References
For more information on how to address records with Sets marked as SIGN_ONLY written by versions 3.1.0 and below of DB-ESDK, see AWS Database Encryption SDK Decrypt with Permute
Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.
No exploitation activity has been observed at this time. Continue routine monitoring.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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