Strix
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CVE-2015-4620

UnknownEPSS 37.87%

Last modified

CVE-2015-4620 is a vulnerability of currently unknown severity. name.c in named in ISC BIND 9.7.x through 9.9.x before 9.9.7-P1 and 9.10.x before 9.10.2-P2, when configured as a recursive resolver with DNSSEC validation, allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) by constructing crafted zone data and then making a query for a name in that zone.. EPSS estimates a 37.87% chance of exploitation in the next 30 days.

Description

name.c in named in ISC BIND 9.7.x through 9.9.x before 9.9.7-P1 and 9.10.x before 9.10.2-P2, when configured as a recursive resolver with DNSSEC validation, allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) by constructing crafted zone data and then making a query for a name in that zone.

Metrics

EPSS Probability
37.87%

98.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
IscBind9.7.0—
IscBind9.7.1—
IscBind9.7.2—
IscBind9.7.3—
IscBind9.7.4—
IscBind9.7.5—
IscBind9.7.6—
IscBind9.7.7—
IscBind9.8.0—
IscBind9.8.1—
IscBind9.8.2B1
IscBind9.8.3—
IscBind9.8.4—
IscBind9.8.5—
IscBind9.8.6B1
IscBind9.9.0—
IscBind9.9.1—
IscBind9.9.2—
IscBind9.9.3—
IscBind9.9.4B1
IscBind9.9.5—
IscBind9.9.6—
IscBind9.9.7B1
IscBind9.10.0—
IscBind9.10.1—
IscBind9.10.2B1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-4620?
name.c in named in ISC BIND 9.7.x through 9.9.x before 9.9.7-P1 and 9.10.x before 9.10.2-P2, when configured as a recursive resolver with DNSSEC validation, allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) by constructing crafted zone data and then making a query for a name in that zone.
How severe is CVE-2015-4620?
Severity scoring for CVE-2015-4620 is pending analysis. The EPSS model estimates a 37.87% probability of exploitation in the next 30 days.
How do I fix CVE-2015-4620?
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.

Are you affected by CVE-2015-4620?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST