CVE-2022-22179

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

A Improper Validation of Specified Index, Position, or Offset in Input vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a crash of jdhcpd and thereby a Denial of Service (DoS). In a scenario where DHCP relay or local server is configured the problem can be triggered if a DHCPv4 packet with specific options is received leading to a corruption of the options read from the packet. This corruption can then lead to jdhcpd crash and restart. This issue affects: Juniper Networks Junos OS 17.4R1 and later versions prior to 18.4R3-S10; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R1-S8, 19.2R3-S4; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3-S1; 21.1 versions prior to 21.1R2-S2, 21.1R3; 21.2 versions prior to 21.2R1-S2, 21.2R2, 21.2R3; 21.3 versions prior to 21.3R1-S1, 21.3R2.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-20

Affected software

VendorProductVersions
Juniper NetworksJunos OS>= 17.4R1, < 17.4*; >= 18.4, < 18.4R3-S10; >= 19.1, < 19.1R3-S7; >= 19.2, < 19.2R1-S8, 19.2R3-S4; >= 19.3, < 19.3R3-S4; >= 19.4, < 19.4R3-S6; >= 20.1, < 20.1R3-S2; >= 20.2, < 20.2R3-S3; >= 20.3, < 20.3R3-S2; >= 20.4, < 20.4R3-S1; >= 21.1, < 21.1R2-S2, 21.1R3; >= 21.2, < 21.2R1-S2, 21.2R2, 21.2R3; >= 21.3, < 21.3R1-S1, 21.3R2

References

Timeline

Published
Jan 19, 2022
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2022-22179: Medium severity, CVSS 6.5 | Vulnix