Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS05aGZnLXB4cjYtcTR2cM0fhQ

Use of a Broken or Risky Cryptographic Algorithm in crypto2

The implementation does not enforce alignment requirements on input slices while incorrectly assuming 4-byte alignment through an unsafe call to std::slice::from_raw_parts_mut, which breaks the contract and introduces undefined behavior.

This affects Chacha20 encryption and decryption in crypto2.

Permalink: https://github.com/advisories/GHSA-9hfg-pxr6-q4vp
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS05aGZnLXB4cjYtcTR2cM0fhQ
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: over 2 years ago
Updated: 9 months ago

CVSS Score: 9.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-9hfg-pxr6-q4vp, CVE-2021-45709
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-45709
• https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/crypto2/RUSTSEC-2021-0121.md
• https://rustsec.org/advisories/RUSTSEC-2021-0121.html
• https://github.com/shadowsocks/crypto2/issues/27
• https://github.com/advisories/GHSA-9hfg-pxr6-q4vp

Repository: https://github.com/shadowsocks/crypto2
Blast Radius: 12.8

Affected Packages