CVE-2020-8929
- Source
- https://cve.org/CVERecord?id=CVE-2020-8929
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-8929.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2020-8929
- Aliases
- Published
- 2020-10-19T13:15:13Z
- Modified
- 2026-10-06T02:29:07Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Git / github.com/tink-crypto/tink
Affected ranges
- Type
- GIT
- Repo
- https://github.com/tink-crypto/tink
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
-
Show details
{ "cpe": "cpe:2.3:a:google:tink_java:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "0" }, { "fixed": "1.5.0" } ], "source": [ "CPE_RANGE", "REFERENCES" ] }