Vulnerability Details : CVE-2023-36842
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.
Vulnerability category: Denial of service
Products affected by CVE-2023-36842
- cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:20.4:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:20.4:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:20.4:r2-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.2:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.2:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:20.4:r3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.2:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.3:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:20.4:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:20.4:r2-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.2:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:20.4:r3-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.2:r1-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.3:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.2:r2-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.2:r2-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.3:r1-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.4:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.4:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.4:r1-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.3:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.3:r2-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.3:r2-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:20.4:r3-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.2:r3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.1:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:20.4:r3-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.4:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.3:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.4:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.4:r2-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.4:r2-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.1:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.1:r1-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.3:r3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.3:r3-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.2:r3-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.2:r3-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.1:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.1:r2-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.2:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.2:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.3:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:20.4:r3-s4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.3:r3-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.2:r1-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.4:r3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.1:r2-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.4:r3-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.2:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.2:r2-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.3:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.1:r3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:20.4:r3-s5:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.2:r3-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.3:r3-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.4:r3-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.3:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.4:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:20.4:r3-s6:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.2:r3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.1:r3-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.3:r3-s4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.4:r3-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.1:r3-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.2:r2-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.3:r1-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.4:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.4:r1-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:20.4:r3-s7:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.2:r3-s4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.3:r2-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.4:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.2:r3-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.1:r3-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.2:r3-s5:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.4:r3-s4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:20.4:r3-s8:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:21.2:r3-s6:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:23.2:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.2:r3-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.3:r2-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.3:r3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:23.2:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.4:r2-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.2:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.1:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.3:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.4:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:22.3:r3-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:23.2:r1-s2:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-36842
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 15 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-36842
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST | 2024-01-18 |
|
6.5
|
MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
Juniper Networks, Inc. | 2024-01-12 |
CWE ids for CVE-2023-36842
-
The product does not properly anticipate or handle exceptional conditions that rarely occur during normal operation of the product.Assigned by: sirt@juniper.net (Secondary)
-
The product does not handle or incorrectly handles an exceptional condition.Assigned by: nvd@nist.gov (Primary)
References for CVE-2023-36842
-
https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Common Vulnerability Scoring System Version 4.0 CalculatorNot Applicable
-
https://supportportal.juniper.net/JSA75730
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