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CVE-2015-5470

UnknownEPSS 11.28%

Last modified

CVE-2015-5470 is a vulnerability of currently unknown severity. The label decompression functionality in PowerDNS Recursor before 3.6.4 and 3.7.x before 3.7.3 and Authoritative (Auth) Server before 3.3.3 and 3.4.x before 3.4.5 allows remote attackers to cause a denial of service (CPU consumption or crash) via a request with a long name that refers to itself. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1868.. EPSS estimates a 11.28% chance of exploitation in the next 30 days.

Description

The label decompression functionality in PowerDNS Recursor before 3.6.4 and 3.7.x before 3.7.3 and Authoritative (Auth) Server before 3.3.3 and 3.4.x before 3.4.5 allows remote attackers to cause a denial of service (CPU consumption or crash) via a request with a long name that refers to itself. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1868.

Metrics

EPSS Probability
11.28%

95.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PowerdnsAuthoritative<= 3.3.2
PowerdnsAuthoritative3.4.0
PowerdnsAuthoritative3.4.1
PowerdnsAuthoritative3.4.2
PowerdnsAuthoritative3.4.3
PowerdnsAuthoritative3.4.4
PowerdnsRecursor<= 3.6.3
PowerdnsRecursor3.7.1
PowerdnsRecursor3.7.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-5470?
The label decompression functionality in PowerDNS Recursor before 3.6.4 and 3.7.x before 3.7.3 and Authoritative (Auth) Server before 3.3.3 and 3.4.x before 3.4.5 allows remote attackers to cause a denial of service (CPU consumption or crash) via a request with a long name that refers to itself. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1868.
How severe is CVE-2015-5470?
Severity scoring for CVE-2015-5470 is pending analysis. The EPSS model estimates a 11.28% probability of exploitation in the next 30 days.
How do I fix CVE-2015-5470?
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