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JuniperVULNRICHMENT:CVE-2024-39528

HistoryJul 11, 2024 - 4:02 p.m.

CVE-2024-39528 Junos OS and Junos OS Evolved: Concurrent deletion of a routing-instance and receipt of an SNMP request cause an RPD crash

2024-07-1116:02:45

CWE-416

juniper

github.com

juniper networks

network-based attacker

denial of service

dos

routing protocol daemon

authenticated

segmentation fault

CVSS3

5.7

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

CVSS4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/SC:N/VI:N/SI:N/VA:H/SA:L

AI Score

6.8

Confidence

High

EPSS

Percentile

13.7%

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

A Use After Free vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an authenticated, network-based attacker to cause a Denial of Service (DoS).On all Junos OS and Junos Evolved platforms, if a routing-instance deactivation is triggered, and at the same time a specific SNMP request is received, a segmentation fault occurs which causes rpd to crash and restart.

This issue affects:

Junos OS:

All versions before 21.2R3-S8,
21.4 versions before 21.4R3-S5,
22.2 versions before 22.2R3-S3,
22.3 versions before 22.3R3-S2,
22.4 versions before 22.4R3,
23.2 versions before 23.2R2.

Junos OS Evolved:

All versions before 21.2R3-S8-EVO,
21.4-EVO versions before 21.4R3-S5-EVO,
22.2-EVO versions before 22.2R3-S3-EVO,
22.3-EVO versions before 22.3R3-S2-EVO,
22.4-EVO versions before 22.4R3-EVO,
23.2-EVO versions before 23.2R2-EVO.

CNA Affected

[
  {
    "vendor": "Juniper Networks",
    "product": "Junos OS",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "21.2R3-S8",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "21.4",
        "lessThan": "21.4R3-S5",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "22.2",
        "lessThan": "22.2R3-S3",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "22.3",
        "lessThan": "22.3R3-S2",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "22.4",
        "lessThan": "22.4R3",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "23.2",
        "lessThan": "23.2R2",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "Juniper Networks",
    "product": "Junos OS Evolved",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "21.2R3-S8-EVO",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "21.4-EVO",
        "lessThan": "21.4R3-S5-EVO",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "22.2-EVO",
        "lessThan": "22.2R3-S3-EVO",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "22.3-EVO",
        "lessThan": "22.3R3-S2-EVO",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "22.4-EVO",
        "lessThan": "22.4R3-EVO",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "23.2-EVO",
        "lessThan": "23.2R2-EVO",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

References

supportportal.juniper.net/JSA82987

CVSS3

5.7

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

CVSS4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/SC:N/VI:N/SI:N/VA:H/SA:L

AI Score

6.8

Confidence

High

EPSS

Percentile

13.7%

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

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