CVE-2021-45709

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Published Dec 26, 2021 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed

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.

Analysis

No analysis available yet

Affected Products

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 remediation available yet

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

Metrics

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.

Exploit prediction score: < 1% (0.778% probability within 30 days)

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

Weaknesses

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

Sources

CVE record Updated: Aug 4, 2024, 4:47 AM

Status: PUBLISHED
Assigner: mitre
Published: Dec 26, 2021, 9:47 PM
Updated: Aug 4, 2024, 4:47 AM
Reserved: Dec 26, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:13 AM

Status: Modified
Published: Dec 27, 2021, 12:15 AM
Modified: Jun 17, 2026, 4:13 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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