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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2020-8929 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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/google/tink/commit/93d839a5865b9d950dffdc9d0bc99b71280a8899 Patch  Third Party Advisory 
https://github.com/google/tink/commit/93d839a5865b9d950dffdc9d0bc99b71280a8899 Patch  Third Party Advisory 
https://github.com/google/tink/security/advisories/GHSA-g5vf-v6wf-7w2r Patch  Third Party Advisory 
https://github.com/google/tink/security/advisories/GHSA-g5vf-v6wf-7w2r Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-Other Other cwe source acceptance level NIST  
CWE-176 Improper Handling of Unicode Encoding Google Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-8929
NVD Published Date:
10/19/2020
NVD Last Modified:
11/21/2024
Source:
Google Inc.