QID 15128

Date Published: 2022-06-01

QID 15128: ISC BIND Lame cache Vulnerability

ISC BIND (Berkley Internet Domain Name) is an implementation of DNS protocols.

Affected versions:
BIND from 9.3.0 prior to 9.11.36
BIND from 9.12.0 prior to 9.16.22
BIND from 9.17.0 prior to 9.17.19
BIND Preview Edition from 9.9.3-S1 prior to 9.11.36-S1
BIND Preview Edition from 9.16.8-S1 prior to 9.16.22-S1

Patched Versions:
BIND 9.11.36
BIND 9.16.22
BIND 9.17.19
BIND 9.11.36-S1
BIND 9.16.22-S1

QID Detection Logic:
This unauthenticated check detects vulnerable systems by fetching the version information from the BIND service.

A successful attack exploiting this flaw causes a named resolver to spend most of its CPU time on managing and checking the lame cache.

CVSS V3 rated as Medium - 5.3 severity.

CVSS V2 rated as Medium - 5 severity.

Solution

Customers are advised to upgrade to the patched version latest release of ISC BIND.

Vendor References

BIND CVE-2021-25219 - kb.isc.org/v1/docs/cve-2021-25219

CVEs related to QID 15128

CVE-2021-25219 |

Software Advisories

Advisory ID	Software	Component	Link
cve-2021-25219			kb.isc.org/v1/docs/cve-2021-25219

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