CVE-2022-3736 named configured to answer from stale cache may terminate unexpectedly while processing RRSIG queries

2023-01-2521:39:18

isc

www.cve.org

cve-2022-3736

bind 9

stale cache

rrsig queries

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.7 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

35.2%

JSON

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.

CNA Affected

[
  {
    "vendor": "ISC",
    "product": "BIND 9",
    "versions": [
      {
        "version": "9.16.12",
        "lessThanOrEqual": "9.16.36",
        "status": "affected",
        "versionType": "custom"
      },
      {
        "version": "9.18.0",
        "lessThanOrEqual": "9.18.10",
        "status": "affected",
        "versionType": "custom"
      },
      {
        "version": "9.19.0",
        "lessThanOrEqual": "9.19.8",
        "status": "affected",
        "versionType": "custom"
      },
      {
        "version": "9.16.12-S1",
        "lessThanOrEqual": "9.16.36-S1",
        "status": "affected",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]