Resource exhaustion in Sha256crypt Project
CVE-2016-20013
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.
EPSS: 0.022 (81.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Sha256crypt_project Sha256crypt
- Sha512crypt_project Sha512crypt
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2016-20013?
- CVE-2016-20013 is a high-severity vulnerability in Sha256crypt Project, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2022-02-19.
- How severe is CVE-2016-20013?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-20013 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.