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Vulnerability · Published Jan 19, 2022 · Assigned by juniper

CVE-2022-22163Junos OS: jdhcpd crashes upon receipt of a specific DHCPv6 packet

High 7.4

In plain English

A high-severity improper input validation in Junos OS from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).

Severity (CVSS 3.1)7.4High
Exploit odds (30 days)0.4%top 69.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

An Improper Input Validation 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). If a device is configured as DHCPv6 local server and persistent storage is enabled, jdhcpd will crash when receiving a specific DHCPv6 message. This issue affects: Juniper Networks Junos OS All versions prior to 15.1R7-S11; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R2-S3, 19.1R3-S7; 19.2 versions prior to 19.2R1-S8, 19.2R3-S3; 19.4 versions prior to 19.4R3-S5; 20.1 versions prior to 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2; 21.2 versions prior to 21.2R2.

Affected products (as reported)

VendorProductVersions
Juniper Networks Junos OS unspecified – before 15.1R7-S1118.4 – before 18.4R3-S919.1 – before 19.1R2-S3, 19.1R3-S719.2 – before 19.2R1-S8, 19.2R3-S319.4 – before 19.4R3-S520.1 – before 20.1R3-S120.2 – before 20.2R3-S220.3 – before 20.3R3-S1

Weakness: CWE-20 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

References