CVE-2019-6465

Zone transfer controls for writable DLZ zones were not effective

Description

Controls for zone transfers may not be properly applied to Dynamically Loadable Zones (DLZs) if the zones are writable Versions affected: BIND 9.9.0 -> 9.10.8-P1, 9.11.0 -> 9.11.5-P2, 9.12.0 -> 9.12.3-P2, and versions 9.9.3-S1 -> 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -> 9.13.6 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2019-6465.

Remediation

Solution:

  • Upgrade to the patched release most closely related to your current version of BIND: >= BIND 9.11.5-P4 >= BIND 9.12.3-P4 BIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers. >= BIND 9.11.5-S5

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.01% Top 25%
Vendor Advisory redhat.com
Affected: ISC BIND 9
Published at:
Updated at:

References

Link Tags
https://kb.isc.org/docs/cve-2019-6465 third party advisory
https://access.redhat.com/errata/RHSA-2019:3552 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-6465?
CVE-2019-6465 has been scored as a medium severity vulnerability.
How to fix CVE-2019-6465?
To fix CVE-2019-6465: Upgrade to the patched release most closely related to your current version of BIND: >= BIND 9.11.5-P4 >= BIND 9.12.3-P4 BIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers. >= BIND 9.11.5-S5
Is CVE-2019-6465 being actively exploited in the wild?
It is possible that CVE-2019-6465 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-6465?
CVE-2019-6465 affects ISC BIND 9.
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