What is CVE-2019-16143?

CVE-2019-16143 is a critical-severity vulnerability in Blake2 Blake2-Rust, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 9.8/10. Published 2019-09-09.

How severe is CVE-2019-16143?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Blake2 Blake2-Rust

CVE-2019-16143

An issue was discovered in the blake2 crate before 0.8.1 for Rust. The BLAKE2b and BLAKE2s algorithms, when used with HMAC, produce incorrect results because the block sizes are half of the required sizes.

Vulnerability class: POODLE (CVE-2014-3566)

EPSS: 0.009 (57.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Blake2 Blake2-rust
N/a — versions n/a

Weakness classification (CWE)

CWE-327 — Use of a Broken or Risky Cryptographic Algorithm

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-16143?: CVE-2019-16143 is a critical-severity vulnerability in Blake2 Blake2-Rust, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 9.8/10. Published 2019-09-09.
How severe is CVE-2019-16143?: Critical severity. CVSS v3 base score is 9.8 out of 10.