CVE-2019-6469

HIGH

BIND 9.10.5-S1-9.11.6-S1 - Reachable Assertion via Malformed RRSIGs in EDNS Client Subnet Feature

Title source: llm
STIX 2.1

Description

An error in the EDNS Client Subnet (ECS) feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a response that has malformed RRSIGs. Versions affected: BIND 9.10.5-S1 -> 9.11.6-S1 of BIND 9 Supported Preview Edition.

References (2)

Core 2
Core References
Third Party Advisory x_refsource_confirm
https://kb.isc.org/docs/cve-2019-6469

Scores

CVSS v3 7.5
EPSS 0.0106
EPSS Percentile 77.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-617
Status published
Products (2)
isc/bind 9.10.5 s1
isc/bind 9.11.6 s1
Published Oct 09, 2019
Tracked Since Feb 18, 2026