CVE-2021-45696

An issue was discovered in the sha2 crate 0.9.7 before 0.9.8 for Rust. Hashes of long messages may be incorrect when the AVX2-accelerated backend is used.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/sha2/RUSTSEC-2021-0100.md	Third Party Advisory
https://rustsec.org/advisories/RUSTSEC-2021-0100.html	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:sha2_project:sha2:0.9.7:*:*:*:*:rust:*:*

History

No history.

Information

Published : 2021-12-27 00:15

Updated : 2023-08-08 14:22

NVD link : CVE-2021-45696

Mitre link : CVE-2021-45696

CVE.ORG link : CVE-2021-45696

JSON object : View

Products Affected

sha2_project

sha2

CWE

CWE-327

Use of a Broken or Risky Cryptographic Algorithm

{"id": "CVE-2021-45696", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2021-12-27T00:15:09.503", "references": [{"url": "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/sha2/RUSTSEC-2021-0100.md", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://rustsec.org/advisories/RUSTSEC-2021-0100.html", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-327"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in the sha2 crate 0.9.7 before 0.9.8 for Rust. Hashes of long messages may be incorrect when the AVX2-accelerated backend is used."}, {"lang": "es", "value": "Se ha detectado un problema en la crate sha2 versiones 0.9.7 anteriores a 0.9.8 para Rust. Los hash de los mensajes largos pueden ser incorrectos cuando es usado el backend acelerado AVX2"}], "lastModified": "2023-08-08T14:22:24.967", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:sha2_project:sha2:0.9.7:*:*:*:*:rust:*:*", "vulnerable": true, "matchCriteriaId": "9E885CB4-90B2-457E-8A70-349A3DF1674A"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}