What is CVE-2021-45696?

CVE-2021-45696 is a critical-severity vulnerability in Sha2_project Sha2, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 9.8/10. Published 2021-12-27.

How severe is CVE-2021-45696?

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

Vulnerability in Sha2_project Sha2

CVE-2021-45696

An issue was discovered in the sha2 crate 0.9.7 before 0.9.8 for Rust. Hashes of long messages may be incorrect when the AVX2-accelerated backend is used.

Vulnerability class: POODLE (CVE-2014-3566)

EPSS: 0.008 (52.1th 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

Sha2_project Sha2 — versions 0.9.7
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)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-45696?: CVE-2021-45696 is a critical-severity vulnerability in Sha2_project Sha2, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 9.8/10. Published 2021-12-27.
How severe is CVE-2021-45696?: Critical severity. CVSS v3 base score is 9.8 out of 10.