CVE-2023-5679 Enabling both DNS64 and serve-stale may cause an assertion failure during recursive resolution

2024-02-1314:05:06

isc

www.cve.org

cve-2023-5679

dns64

serve-stale

assertion failure

named

recursive resolution

bind 9.

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

7.8 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

42.2%

JSON

A bad interaction between DNS64 and serve-stale may cause named to crash with an assertion failure during recursive resolution, when both of these features are enabled.
This issue affects BIND 9 versions 9.16.12 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.12-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.

CNA Affected

[
  {
    "vendor": "ISC",
    "product": "BIND 9",
    "versions": [
      {
        "version": "9.16.12",
        "lessThanOrEqual": "9.16.45",
        "status": "affected",
        "versionType": "custom"
      },
      {
        "version": "9.18.0",
        "lessThanOrEqual": "9.18.21",
        "status": "affected",
        "versionType": "custom"
      },
      {
        "version": "9.19.0",
        "lessThanOrEqual": "9.19.19",
        "status": "affected",
        "versionType": "custom"
      },
      {
        "version": "9.16.12-S1",
        "lessThanOrEqual": "9.16.45-S1",
        "status": "affected",
        "versionType": "custom"
      },
      {
        "version": "9.18.11-S1",
        "lessThanOrEqual": "9.18.21-S1",
        "status": "affected",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]