CVE-2020-8618 A buffer boundary check assertion in rdataset.c can fail incorrectly during zone transfer

2020-06-1721:20:13

isc

www.cve.org

CVSS3

4.9

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

5.2

Confidence

High

EPSS

0.002

Percentile

51.3%

JSON

An attacker who is permitted to send zone data to a server via zone transfer can exploit this to intentionally trigger the assertion failure with a specially constructed zone, denying service to clients.

CNA Affected

[
  {
    "product": "BIND9",
    "vendor": "ISC",
    "versions": [
      {
        "status": "affected",
        "version": "9.16.0 -> 9.16.3"
      }
    ]
  }
]