What is CVE-2021-45709?

CVE-2021-45709 is a critical-severity vulnerability in Crypto2 Project, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2021-12-27.

How severe is CVE-2021-45709?

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

Buffer overflow in Crypto2 Project

CVE-2021-45709

An issue was discovered in the crypto2 crate through 2021-10-08 for Rust. During Chacha20 encryption and decryption, an unaligned read of a u32 may occur.

Vulnerability class: Buffer Overflow

EPSS: 0.008 (51.3th 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

Crypto2_project Crypto2
N/a — versions n/a

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

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-2021-45709?: CVE-2021-45709 is a critical-severity vulnerability in Crypto2 Project, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2021-12-27.
How severe is CVE-2021-45709?: Critical severity. CVSS v3 base score is 9.8 out of 10.