CVE-2022-3736

named configured to answer from stale cache may terminate unexpectedly while processing RRSIG queries

High · published January 25, 2023

CVSS v3.1

7.5

EPSS

49%

Percentile

98.9

In the wild

Unconfirmed

What it is

BIND 9 resolver can crash when stale cache and stale answers are enabled, option `stale-answer-client-timeout` is set to a positive integer, and the resolver receives an RRSIG query.

This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.

The record

Technical detail

CVSS v3.1: 7.5 · HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0: Not supplied
EPSS: 0.48707 · 98.9th percentile
Published: 2023-01-25T21:39Z

EPSS history

Timeline

25 JAN 21:39Z
named configured to answer from stale cache may terminate unexpectedly while processing RRSIG queries
cvelistv5