CVE-2020-8929 | BDVDB-2026-143232 Detail

Description#

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.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12020-10-19Record published in the CVE List.
2. Version 22024-08-04Most recent update recorded in the CVE List.