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[email protected]CVE-2023-36842

HistoryJan 12, 2024 - 1:15 a.m.

CVE-2023-36842

2024-01-1201:15:45

CWE-755

CWE-703

[email protected]

web.nvd.nist.gov

vulnerability

security

juniper networks junos os

denial of service

dhcp

jdhcpd

cve-2023-36842

nvd

6.5 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.0005 Low

EPSS

Percentile

18.0%

JSON

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.

Affected configurations

NVD

Node

juniperjunosRange<20.4

juniperjunosMatch20.4-

juniperjunosMatch20.4r1

juniperjunosMatch20.4r1-s1

juniperjunosMatch20.4r2

juniperjunosMatch20.4r2-s1

juniperjunosMatch20.4r2-s2

juniperjunosMatch20.4r3

juniperjunosMatch20.4r3-s1

juniperjunosMatch20.4r3-s2

juniperjunosMatch20.4r3-s3

juniperjunosMatch20.4r3-s4

juniperjunosMatch20.4r3-s5

juniperjunosMatch20.4r3-s6

juniperjunosMatch20.4r3-s7

juniperjunosMatch20.4r3-s8

juniperjunosMatch21.2-

juniperjunosMatch21.2r1

juniperjunosMatch21.2r1-s1

juniperjunosMatch21.2r1-s2

juniperjunosMatch21.2r2

juniperjunosMatch21.2r2-s1

juniperjunosMatch21.2r2-s2

juniperjunosMatch21.2r3

juniperjunosMatch21.2r3-s1

juniperjunosMatch21.2r3-s2

juniperjunosMatch21.2r3-s3

juniperjunosMatch21.2r3-s4

juniperjunosMatch21.2r3-s5

juniperjunosMatch21.2r3-s6

juniperjunosMatch21.3-

juniperjunosMatch21.3r1

juniperjunosMatch21.3r1-s1

juniperjunosMatch21.3r1-s2

juniperjunosMatch21.3r2

juniperjunosMatch21.3r2-s1

juniperjunosMatch21.3r2-s2

juniperjunosMatch21.3r3

juniperjunosMatch21.3r3-s1

juniperjunosMatch21.3r3-s2

juniperjunosMatch21.3r3-s3

juniperjunosMatch21.3r3-s4

juniperjunosMatch21.4-

juniperjunosMatch21.4r1

juniperjunosMatch21.4r1-s1

juniperjunosMatch21.4r1-s2

juniperjunosMatch21.4r2

juniperjunosMatch21.4r2-s1

juniperjunosMatch21.4r2-s2

juniperjunosMatch21.4r3

juniperjunosMatch21.4r3-s1

juniperjunosMatch21.4r3-s2

juniperjunosMatch21.4r3-s3

juniperjunosMatch21.4r3-s4

juniperjunosMatch22.1-

juniperjunosMatch22.1r1

juniperjunosMatch22.1r1-s1

juniperjunosMatch22.1r1-s2

juniperjunosMatch22.1r2

juniperjunosMatch22.1r2-s1

juniperjunosMatch22.1r2-s2

juniperjunosMatch22.1r3

juniperjunosMatch22.1r3-s1

juniperjunosMatch22.1r3-s2

juniperjunosMatch22.1r3-s3

juniperjunosMatch22.2-

juniperjunosMatch22.2r1

juniperjunosMatch22.2r1-s1

juniperjunosMatch22.2r1-s2

juniperjunosMatch22.2r2

juniperjunosMatch22.2r2-s1

juniperjunosMatch22.2r2-s2

juniperjunosMatch22.2r3

juniperjunosMatch22.2r3-s1

juniperjunosMatch22.2r3-s2

juniperjunosMatch22.3-

juniperjunosMatch22.3r1

juniperjunosMatch22.3r1-s1

juniperjunosMatch22.3r1-s2

juniperjunosMatch22.3r2

juniperjunosMatch22.3r2-s1

juniperjunosMatch22.3r2-s2

juniperjunosMatch22.3r3

juniperjunosMatch22.3r3-s1

juniperjunosMatch22.4-

juniperjunosMatch22.4r1

juniperjunosMatch22.4r1-s1

juniperjunosMatch22.4r1-s2

juniperjunosMatch22.4r2

juniperjunosMatch22.4r2-s1

juniperjunosMatch23.2r1

juniperjunosMatch23.2r1-s1

juniperjunosMatch23.2r1-s2

CPENameOperatorVersion
juniper:junosjuniper junoslt20.4
juniper:junosjuniper junoseq21.2
juniper:junosjuniper junoseq21.3
juniper:junosjuniper junoseq21.4
juniper:junosjuniper junoseq22.1
juniper:junosjuniper junoseq22.2
juniper:junosjuniper junoseq22.3
juniper:junosjuniper junoseq22.4
juniper:junosjuniper junoseq23.2

CPE	Name	Operator	Version
juniper:junos	juniper junos	lt	20.4
juniper:junos	juniper junos	eq	21.2
juniper:junos	juniper junos	eq	21.3
juniper:junos	juniper junos	eq	21.4
juniper:junos	juniper junos	eq	22.1
juniper:junos	juniper junos	eq	22.2
juniper:junos	juniper junos	eq	22.3
juniper:junos	juniper junos	eq	22.4
juniper:junos	juniper junos	eq	23.2

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "platforms": [
      "MX Series",
      "EX Series"
    ],
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "20.4R3-S9",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThan": "21.2R3-S7",
        "status": "affected",
        "version": "21.2",
        "versionType": "semver"
      },
      {
        "lessThan": "21.3R3-S5",
        "status": "affected",
        "version": "21.3",
        "versionType": "semver"
      },
      {
        "lessThan": "21.4R3-S5",
        "status": "affected",
        "version": "21.4",
        "versionType": "semver"
      },
      {
        "lessThan": "22.1R3-S4",
        "status": "affected",
        "version": "22.1",
        "versionType": "semver"
      },
      {
        "lessThan": "22.2R3-S3",
        "status": "affected",
        "version": "22.2",
        "versionType": "semver"
      },
      {
        "lessThan": "22.3R3-S2",
        "status": "affected",
        "version": "22.3",
        "versionType": "semver"
      },
      {
        "lessThan": "22.4R2-S2, 22.4R3",
        "status": "affected",
        "version": "22.4",
        "versionType": "semver"
      },
      {
        "lessThan": "23.2R2",
        "status": "affected",
        "version": "23.2",
        "versionType": "semver"
      }
    ]
  }
]

References

supportportal.juniper.net/JSA75730

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

6.5 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.0005 Low

EPSS

Percentile

18.0%

JSON

Related for CVE-2023-36842

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