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CVE-2016-1567

UnknownEPSS 2.64%

Last modified

CVE-2016-1567 is a vulnerability of currently unknown severity. chrony before 1.31.2 and 2.x before 2.2.1 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key.". EPSS estimates a 2.64% chance of exploitation in the next 30 days.

Description

chrony before 1.31.2 and 2.x before 2.2.1 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key."

Metrics

EPSS Probability
2.64%

83.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
TuxfamilyChrony<= 1.31.1
TuxfamilyChrony2.0
TuxfamilyChrony2.1
TuxfamilyChrony2.1.1
TuxfamilyChrony2.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2016-1567?
chrony before 1.31.2 and 2.x before 2.2.1 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key."
How severe is CVE-2016-1567?
Severity scoring for CVE-2016-1567 is pending analysis. The EPSS model estimates a 2.64% probability of exploitation in the next 30 days.
How do I fix CVE-2016-1567?
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.

How Strix Helps

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Source: NVD / NIST