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CVE-2016-6515

UnknownEPSS 57.67%

Last modified

CVE-2016-6515 is a vulnerability of currently unknown severity. The auth_password function in auth-passwd.c in sshd in OpenSSH before 7.3 does not limit password lengths for password authentication, which allows remote attackers to cause a denial of service (crypt CPU consumption) via a long string.. EPSS estimates a 57.67% chance of exploitation in the next 30 days.

Description

The auth_password function in auth-passwd.c in sshd in OpenSSH before 7.3 does not limit password lengths for password authentication, which allows remote attackers to cause a denial of service (crypt CPU consumption) via a long string.

Metrics

EPSS Probability
57.67%

99.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
OpenbsdOpenssh<= 7.2P2
FedoraprojectFedora24—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2016-6515?
The auth_password function in auth-passwd.c in sshd in OpenSSH before 7.3 does not limit password lengths for password authentication, which allows remote attackers to cause a denial of service (crypt CPU consumption) via a long string.
How severe is CVE-2016-6515?
Severity scoring for CVE-2016-6515 is pending analysis. The EPSS model estimates a 57.67% probability of exploitation in the next 30 days.
How do I fix CVE-2016-6515?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST