Is CVE-2019-6471 in the CISA KEV catalog?

No. CVE-2019-6471 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-6471?

CVE-2019-6471 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2019-6471?

CVE-2019-6471 has an EPSS score of 3.27% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-6471?

Upgrade bind9 on debian 11 to 1:9.11.5.P4+dfsg-5.1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2019-6471

MEDIUMEPSS 87th pctl

5.9

CVSS v3

NVD

Description

A race condition which may occur when discarding malformed packets can result in BIND exiting due to a REQUIRE assertion failure in dispatch.c. Versions affected: BIND 9.11.0 -> 9.11.7, 9.12.0 -> 9.12.4-P1, 9.14.0 -> 9.14.2. Also all releases of the BIND 9.13 development branch and version 9.15.0 of the BIND 9.15 development branch and BIND Supported Preview Edition versions 9.11.3-S1 -> 9.11.7-S1.

CWE-362Race Condition CWE-617

How to fix

Remediation Available

bind9Debian

Fixed in:1:9.11.5.P4+dfsg-5.1CVE-2019-6471

bind9Ubuntu

Fixed in:1:9.11.3+dfsg-1ubuntu1.8USN-4026-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

3.27%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Third-Party Advisory1

kb.isc.org

Other references1

support.f5.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.