CVE-2016-20013

At a glance

Severity: Not available
EPSS: EPSS 2.17 % · percentile 82 (2026-10-27)
State: PUBLISHED
Published: 2022-02-19
Updated: 2024-08-06
Assigner: mitre
NVD status: Modified

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · nvd@nist.gov (Primary)
CVSS 2.0	MEDIUM 5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-770

European references

ENISA EUVD · EUVD-2016-3101
GCVE · GCVE-0-2016-20013

CERT-FR advisories

CERTFR-2025-AVI-0864 — Multiples vulnérabilités dans VMware Tanzu · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:sha256crypt_project:sha256crypt:*:*:*:*:*:*:*:* ≤ 0.6
cpe:2.3:a:sha512crypt_project:sha512crypt:*:*:*:*:*:*:*:* ≤ 0.6

Affected products

Product	Versions
	affected n/a

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD