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CVE-2020-8929

Ciphertext integrity weakness in Tink PUBLISHED

Description (CNA)

A mis-handling of invalid unicode characters in the Java implementation of Tink versions prior to 1.5 allows an attacker to change the ID part of a ciphertext, which result in the creation of a second ciphertext that can decrypt to the same plaintext. This can be a problem with encrypting deterministic AEAD with a single key, and rely on a unique ciphertext-per-plaintext.

Affected (CNA)

Vendor / productVersions
Google LLC / Tinkaffected stable before 1.5

CWE

CWE-176

References

ADP enrichment

CVE

No English description supplied.