CVE-2023-46849

2023-11-1101:15:07

CWE-369

[email protected]

web.nvd.nist.gov

openvpn

cve-2023-46849

2.6.0

2.6.6

dos

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

8 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

21.1%

JSON

Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service.

Affected configurations

NVD

Node

openvpnopenvpnRange2.6.0–2.6.6community

openvpnopenvpn_access_serverRange2.11.0–2.11.3

openvpnopenvpn_access_serverMatch2.12.0

openvpnopenvpn_access_serverMatch2.12.1

Node

debiandebian_linuxMatch12.0

fedoraprojectfedoraMatch39

CPENameOperatorVersion
openvpn:openvpnopenvpnle2.6.6
openvpn:openvpn_access_serveropenvpn openvpn access serverle2.11.3
openvpn:openvpn_access_serveropenvpn openvpn access servereq2.12.0
openvpn:openvpn_access_serveropenvpn openvpn access servereq2.12.1

CPE	Name	Operator	Version
openvpn:openvpn	openvpn	le	2.6.6
openvpn:openvpn_access_server	openvpn openvpn access server	le	2.11.3
openvpn:openvpn_access_server	openvpn openvpn access server	eq	2.12.0
openvpn:openvpn_access_server	openvpn openvpn access server	eq	2.12.1

CNA Affected

[
  {
    "vendor": "OpenVPN",
    "product": "OpenVPN 2 (Community)",
    "versions": [
      {
        "status": "affected",
        "version": "2.6.0",
        "lessThanOrEqual": "2.6.6",
        "versionType": "minor release"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "OpenVPN",
    "product": "Access Server",
    "platforms": [
      "Linux"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "2.11.0",
        "lessThanOrEqual": "2.11.3",
        "versionType": "patch release"
      },
      {
        "status": "affected",
        "version": "2.12.0",
        "lessThanOrEqual": "2.12.1",
        "versionType": "patch release"
      }
    ],
    "defaultStatus": "unaffected"
  }
]