Integer overflow in Chacha20 Project

CVE-2019-25005

An issue was discovered in the chacha20 crate before 0.2.3 for Rust. A ChaCha20 counter overflow makes it easier for attackers to determine plaintext.

Vulnerability class: Integer Overflow

EPSS: 0.013 (67.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2019-25005?
CVE-2019-25005 is a high-severity vulnerability in Chacha20 Project, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2020-12-31.
How severe is CVE-2019-25005?
High severity. CVSS v3 base score is 7.5 out of 10.