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Ubuntu.comUB:CVE-2021-46873

HistoryJan 29, 2023 - 12:00 a.m.

CVE-2021-46873

2023-01-2900:00:00

ubuntu.com

wireguard

windows

system time

adversary

key loss

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

EPSS

0.001

Percentile

35.0%

JSON

WireGuard, such as WireGuard 0.5.3 on Windows, does not fully account for
the possibility that an adversary might be able to set a victim’s system
time to a future value, e.g., because unauthenticated NTP is used. This can
lead to an outcome in which one static private key becomes permanently
useless.

Notes

Author	Note
evancaville	as of 2024-02-02, doesn’t appear to be an upstream fix available for this issue.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchwireguard< anyUNKNOWN
ubuntu20.04noarchwireguard< anyUNKNOWN
ubuntu22.04noarchwireguard< anyUNKNOWN
ubuntu24.04noarchwireguard< anyUNKNOWN
ubuntu16.04noarchwireguard< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	wireguard	< any	UNKNOWN
ubuntu	20.04	noarch	wireguard	< any	UNKNOWN
ubuntu	22.04	noarch	wireguard	< any	UNKNOWN
ubuntu	24.04	noarch	wireguard	< any	UNKNOWN
ubuntu	16.04	noarch	wireguard	< any	UNKNOWN

References

launchpad.net/bugs/cve/CVE-2021-46873

lists.zx2c4.com/pipermail/wireguard/2021-August/006916.html

nvd.nist.gov/vuln/detail/CVE-2021-46873

security-tracker.debian.org/tracker/CVE-2021-46873

www.cve.org/CVERecord?id=CVE-2021-46873

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

EPSS

0.001

Percentile

35.0%

JSON

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