CVE-2021-45709 - Vulnerability Details - OpenCVE

Description

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.

Published: 2021-12-26

Score: 9.8 Critical

EPSS: < 1% Very Low

KEV: No

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:crypto2_project:crypto2:*:*:*:*:*:rust:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2022-0545	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.
Github GHSA	GHSA-9hfg-pxr6-q4vp	Use of a Broken or Risky Cryptographic Algorithm in crypto2

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00778.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/crypto2/RUSTSEC-2021-0121.md
https://rustsec.org/advisories/RUSTSEC-2021-0121.html

History

No history.

Subscriptions

Crypto2 Project Crypto2

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-12-26T21:47:32.000Z

Updated: 2024-08-04T04:47:02.019Z

Reserved: 2021-12-26T00:00:00.000Z

Link: CVE-2021-45709

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-12-27T00:15:10.017

Modified: 2026-06-17T04:13:59.617

Link: CVE-2021-45709

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

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

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