github - ghsa-m6p4-4cgp-9hfh

GHSA-M6P4-4CGP-9HFH

Vulnerability from github – Published: 2022-05-24 17:48 – Updated: 2022-05-24 17:48

Details

An Improper Input Validation vulnerability in the active-lease query portion in JDHCPD's DHCP Relay Agent of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) by sending a crafted DHCP packet to the device thereby crashing the jdhcpd DHCP service. This is typically configured for Broadband Subscriber Sessions. Continued receipt and processing of this crafted packet will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS: 19.4 versions prior to 19.4R3-S1; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R3; 20.3 versions prior to 20.3R2. This issue does not affect Junos OS Evolved.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-0267"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-04-22T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "An Improper Input Validation vulnerability in the active-lease query portion in JDHCPD\u0027s DHCP Relay Agent of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) by sending a crafted DHCP packet to the device thereby crashing the jdhcpd DHCP service. This is typically configured for Broadband Subscriber Sessions. Continued receipt and processing of this crafted packet will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS: 19.4 versions prior to 19.4R3-S1; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R3; 20.3 versions prior to 20.3R2. This issue does not affect Junos OS Evolved.",
  "id": "GHSA-m6p4-4cgp-9hfh",
  "modified": "2022-05-24T17:48:15Z",
  "published": "2022-05-24T17:48:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-0267"
    },
    {
      "type": "WEB",
      "url": "https://kb.juniper.net/JSA11158"
    },
    {
      "type": "WEB",
      "url": "https://www.juniper.net/documentation/us/en/software/junos/subscriber-mgmt-sessions/topics/ref/statement/active-leasequery-edit-forwarding-options.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2021-0267 (GCVE-0-2021-0267)

Vulnerability from cvelistv5 – Published: 2021-04-22 19:37 – Updated: 2024-09-17 03:54

Title

Junos OS: Receipt of a crafted DHCP packet will cause the jdhcpd DHCP service to core.

Summary

Severity ?

7.4 (High)


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

CWE

CWE-20 - Improper Input Validation
Denial of Service (DoS)

Assigner

juniper

References

URL

Tags

	https://kb.juniper.net/JSA11158	x_refsource_MISC
	https://www.juniper.net/documentation/us/en/softw…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Juniper Networks	Junos OS	Affected: 19.4 , < 19.4R3-S1 (custom) Affected: 20.1 , < 20.1R2-S1, 20.1R3 (custom) Affected: 20.2 , < 20.2R3 (custom) Affected: 20.3 , < 20.3R2 (custom)

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-M6P4-4CGP-9HFH

CVE-2021-0267 (GCVE-0-2021-0267)

Tags

Sightings

Nomenclature