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[email protected]CVE-2020-13529

HistoryMay 10, 2021 - 4:15 p.m.

CVE-2020-13529

2021-05-1016:15:07

CWE-290

[email protected]

web.nvd.nist.gov

261

cve-2020-13529

systemd

denial of service

vulnerability

dhcp

ack spoofing

nvd

2.9 Low

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:A/AC:M/Au:N/C:N/I:N/A:P

6.1 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.2 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

49.7%

JSON

An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server.

Affected configurations

Vulners

NVD

Node

systemd_projectsystemdRange≤245

VendorProductVersionCPE
systemd_projectsystemd*cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
systemd_project	systemd	*	cpe:2.3:a:systemd_project:systemd::::::::

CNA Affected

[
  {
    "product": "Systemd",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Canonical Ubuntu 20.04 LTS, Systemd 245"
      }
    ]
  }
]