CVE-2016-20013 - Vulnerability Details - OpenCVE

Description

sha256crypt and sha512crypt through 0.6 allow attackers to cause a denial of service (CPU consumption) because the algorithm's runtime is proportional to the square of the length of the password.

Published: 2022-02-19

Score: 7.5 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

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 [-]

OR	cpe:2.3:a:sha256crypt_project:sha256crypt::::::::
	cpe:2.3:a:sha512crypt_project:sha512crypt::::::::

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2016-3101	sha256crypt and sha512crypt through 0.6 allow attackers to cause a denial of service (CPU consumption) because the algorithm's runtime is proportional to the square of the length of the password.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00307.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://akkadia.org/drepper/SHA-crypt.txt
https://pthree.org/2018/05/23/do-not-use-sha256crypt-sha512crypt-theyre-dangerous/
https://twitter.com/solardiz/status/795601240151457793

History

No history.

Subscriptions

Sha256crypt Project Sha256crypt

Sha512crypt Project Sha512crypt

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2022-02-19T04:17:39.000Z

Updated: 2024-08-06T03:47:34.906Z

Reserved: 2022-02-19T00:00:00.000Z

Link: CVE-2016-20013

Vulnrichment

No data.

NVD

Status : Modified

Published: 2022-02-19T05:15:09.413

Modified: 2024-11-21T02:47:33.427

Link: CVE-2016-20013

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-770

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