6.1 Medium
CVSS3
Attack Vector
ADJACENT_NETWORK
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
2.9 Low
CVSS2
Access Vector
ADJACENT_NETWORK
Access 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
0.001 Low
EPSS
Percentile
48.9%
Severity: Low
Date : 2021-07-14
CVE-ID : CVE-2020-13529
Package : systemd
Type : denial of service
Remote : Yes
Link : https://security.archlinux.org/AVG-1935
The package systemd before version 249-2 is vulnerable to denial of
service.
Upgrade to 249-2.
The problem has been fixed upstream in version 249.
None.
An exploitable denial-of-service vulnerability exists in systemd-
networkd before version 249. A maliciously 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.
A network-adjacent attacker could reconfigure the networking properties
of a device running systemd-networkd through crafted DHCP packets.
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1142
https://github.com/systemd/systemd/issues/16774
https://github.com/systemd/systemd/pull/20002
https://github.com/systemd/systemd/commit/38e980a6a5a3442c2f48b1f827284388096d8ca5
https://security.archlinux.org/CVE-2020-13529
6.1 Medium
CVSS3
Attack Vector
ADJACENT_NETWORK
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
2.9 Low
CVSS2
Access Vector
ADJACENT_NETWORK
Access 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
0.001 Low
EPSS
Percentile
48.9%