Vulnerabilities
Misconfiguration
Runtime Security
Compliance
CVE Vulnerabilities

CVE-2023-36842

Improper Check or Handling of Exceptional Conditions

Published: Jan 12, 2024 | Modified: Nov 21, 2024
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2023-36842
CWEhttps://cwe.mitre.org/data/definitions/703.html

An Improper Check for Unusual or Exceptional Conditions vulnerability in Juniper DHCP Daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent, unauthenticated attacker to cause the jdhcpd to consume all the CPU cycles resulting in a Denial of Service (DoS).

On Junos OS devices with forward-snooped-client configured, if an attacker sends a specific DHCP packet to a non-configured interface, this will cause an infinite loop. The DHCP process will have to be restarted to recover the service.

This issue affects:

Juniper Networks Junos OS

  • All versions earlier than 20.4R3-S9;
  • 21.2 versions earlier than 21.2R3-S7;
  • 21.3 versions earlier than 21.3R3-S5;
  • 21.4 versions earlier than 21.4R3-S5;
  • 22.1 versions earlier than 22.1R3-S4;
  • 22.2 versions earlier than 22.2R3-S3;
  • 22.3 versions earlier than 22.3R3-S2;
  • 22.4 versions earlier than 22.4R2-S2, 22.4R3;
  • 23.2 versions earlier than 23.2R2.

Weakness

The product does not properly anticipate or handle exceptional conditions that rarely occur during normal operation of the product.

Affected Software

Name Vendor Start Version End Version
Junos Juniper * 20.4 (excluding)
Junos Juniper 20.4 (including) 20.4 (including)
Junos Juniper 20.4-r1 (including) 20.4-r1 (including)
Junos Juniper 20.4-r1-s1 (including) 20.4-r1-s1 (including)
Junos Juniper 20.4-r2 (including) 20.4-r2 (including)
Junos Juniper 20.4-r2-s1 (including) 20.4-r2-s1 (including)
Junos Juniper 20.4-r2-s2 (including) 20.4-r2-s2 (including)
Junos Juniper 20.4-r3 (including) 20.4-r3 (including)
Junos Juniper 20.4-r3-s1 (including) 20.4-r3-s1 (including)
Junos Juniper 20.4-r3-s2 (including) 20.4-r3-s2 (including)
Junos Juniper 20.4-r3-s3 (including) 20.4-r3-s3 (including)
Junos Juniper 20.4-r3-s4 (including) 20.4-r3-s4 (including)
Junos Juniper 20.4-r3-s5 (including) 20.4-r3-s5 (including)
Junos Juniper 20.4-r3-s6 (including) 20.4-r3-s6 (including)
Junos Juniper 20.4-r3-s7 (including) 20.4-r3-s7 (including)
Junos Juniper 20.4-r3-s8 (including) 20.4-r3-s8 (including)
Junos Juniper 21.2 (including) 21.2 (including)
Junos Juniper 21.2-r1 (including) 21.2-r1 (including)
Junos Juniper 21.2-r1-s1 (including) 21.2-r1-s1 (including)
Junos Juniper 21.2-r1-s2 (including) 21.2-r1-s2 (including)
Junos Juniper 21.2-r2 (including) 21.2-r2 (including)
Junos Juniper 21.2-r2-s1 (including) 21.2-r2-s1 (including)
Junos Juniper 21.2-r2-s2 (including) 21.2-r2-s2 (including)
Junos Juniper 21.2-r3 (including) 21.2-r3 (including)
Junos Juniper 21.2-r3-s1 (including) 21.2-r3-s1 (including)
Junos Juniper 21.2-r3-s2 (including) 21.2-r3-s2 (including)
Junos Juniper 21.2-r3-s3 (including) 21.2-r3-s3 (including)
Junos Juniper 21.2-r3-s4 (including) 21.2-r3-s4 (including)
Junos Juniper 21.2-r3-s5 (including) 21.2-r3-s5 (including)
Junos Juniper 21.2-r3-s6 (including) 21.2-r3-s6 (including)
Junos Juniper 21.3 (including) 21.3 (including)
Junos Juniper 21.3-r1 (including) 21.3-r1 (including)
Junos Juniper 21.3-r1-s1 (including) 21.3-r1-s1 (including)
Junos Juniper 21.3-r1-s2 (including) 21.3-r1-s2 (including)
Junos Juniper 21.3-r2 (including) 21.3-r2 (including)
Junos Juniper 21.3-r2-s1 (including) 21.3-r2-s1 (including)
Junos Juniper 21.3-r2-s2 (including) 21.3-r2-s2 (including)
Junos Juniper 21.3-r3 (including) 21.3-r3 (including)
Junos Juniper 21.3-r3-s1 (including) 21.3-r3-s1 (including)
Junos Juniper 21.3-r3-s2 (including) 21.3-r3-s2 (including)
Junos Juniper 21.3-r3-s3 (including) 21.3-r3-s3 (including)
Junos Juniper 21.3-r3-s4 (including) 21.3-r3-s4 (including)
Junos Juniper 21.4 (including) 21.4 (including)
Junos Juniper 21.4-r1 (including) 21.4-r1 (including)
Junos Juniper 21.4-r1-s1 (including) 21.4-r1-s1 (including)
Junos Juniper 21.4-r1-s2 (including) 21.4-r1-s2 (including)
Junos Juniper 21.4-r2 (including) 21.4-r2 (including)
Junos Juniper 21.4-r2-s1 (including) 21.4-r2-s1 (including)
Junos Juniper 21.4-r2-s2 (including) 21.4-r2-s2 (including)
Junos Juniper 21.4-r3 (including) 21.4-r3 (including)
Junos Juniper 21.4-r3-s1 (including) 21.4-r3-s1 (including)
Junos Juniper 21.4-r3-s2 (including) 21.4-r3-s2 (including)
Junos Juniper 21.4-r3-s3 (including) 21.4-r3-s3 (including)
Junos Juniper 21.4-r3-s4 (including) 21.4-r3-s4 (including)
Junos Juniper 22.1 (including) 22.1 (including)
Junos Juniper 22.1-r1 (including) 22.1-r1 (including)
Junos Juniper 22.1-r1-s1 (including) 22.1-r1-s1 (including)
Junos Juniper 22.1-r1-s2 (including) 22.1-r1-s2 (including)
Junos Juniper 22.1-r2 (including) 22.1-r2 (including)
Junos Juniper 22.1-r2-s1 (including) 22.1-r2-s1 (including)
Junos Juniper 22.1-r2-s2 (including) 22.1-r2-s2 (including)
Junos Juniper 22.1-r3 (including) 22.1-r3 (including)
Junos Juniper 22.1-r3-s1 (including) 22.1-r3-s1 (including)
Junos Juniper 22.1-r3-s2 (including) 22.1-r3-s2 (including)
Junos Juniper 22.1-r3-s3 (including) 22.1-r3-s3 (including)
Junos Juniper 22.2 (including) 22.2 (including)
Junos Juniper 22.2-r1 (including) 22.2-r1 (including)
Junos Juniper 22.2-r1-s1 (including) 22.2-r1-s1 (including)
Junos Juniper 22.2-r1-s2 (including) 22.2-r1-s2 (including)
Junos Juniper 22.2-r2 (including) 22.2-r2 (including)
Junos Juniper 22.2-r2-s1 (including) 22.2-r2-s1 (including)
Junos Juniper 22.2-r2-s2 (including) 22.2-r2-s2 (including)
Junos Juniper 22.2-r3 (including) 22.2-r3 (including)
Junos Juniper 22.2-r3-s1 (including) 22.2-r3-s1 (including)
Junos Juniper 22.2-r3-s2 (including) 22.2-r3-s2 (including)
Junos Juniper 22.3 (including) 22.3 (including)
Junos Juniper 22.3-r1 (including) 22.3-r1 (including)
Junos Juniper 22.3-r1-s1 (including) 22.3-r1-s1 (including)
Junos Juniper 22.3-r1-s2 (including) 22.3-r1-s2 (including)
Junos Juniper 22.3-r2 (including) 22.3-r2 (including)
Junos Juniper 22.3-r2-s1 (including) 22.3-r2-s1 (including)
Junos Juniper 22.3-r2-s2 (including) 22.3-r2-s2 (including)
Junos Juniper 22.3-r3 (including) 22.3-r3 (including)
Junos Juniper 22.3-r3-s1 (including) 22.3-r3-s1 (including)
Junos Juniper 22.4 (including) 22.4 (including)
Junos Juniper 22.4-r1 (including) 22.4-r1 (including)
Junos Juniper 22.4-r1-s1 (including) 22.4-r1-s1 (including)
Junos Juniper 22.4-r1-s2 (including) 22.4-r1-s2 (including)
Junos Juniper 22.4-r2 (including) 22.4-r2 (including)
Junos Juniper 22.4-r2-s1 (including) 22.4-r2-s1 (including)
Junos Juniper 23.2-r1 (including) 23.2-r1 (including)
Junos Juniper 23.2-r1-s1 (including) 23.2-r1-s1 (including)
Junos Juniper 23.2-r1-s2 (including) 23.2-r1-s2 (including)

References

Aqua Security is the largest pure-play cloud native security company, providing customers the freedom to innovate and run their businesses with minimal friction. The Aqua Cloud Native Security Platform provides prevention, detection, and response automation across the entire application lifecycle to secure the build, secure cloud infrastructure and secure running workloads wherever they are deployed.
Copyright © 2025 Aqua Security Software Ltd.   Privacy Policy | Terms of Use