github - ghsa-q8rh-r33q-hvj2

GHSA-Q8RH-R33Q-HVJ2

Vulnerability from github – Published: 2022-05-13 01:38 – Updated: 2025-10-22 00:31

Details

The DHCP relay subsystem of Cisco IOS 12.2 through 15.6 and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an affected system. The attacker could also cause an affected system to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to a buffer overflow condition in the DHCP relay subsystem of the affected software. An attacker could exploit this vulnerability by sending a crafted DHCP Version 4 (DHCPv4) packet to an affected system. A successful exploit could allow the attacker to execute arbitrary code and gain full control of the affected system or cause the affected system to reload, resulting in a DoS condition. Cisco Bug IDs: CSCsm45390, CSCuw77959.

Severity ?

9.8 (Critical)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2017-12240"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119",
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-09-29T01:34:00Z",
    "severity": "CRITICAL"
  },
  "details": "The DHCP relay subsystem of Cisco IOS 12.2 through 15.6 and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an affected system. The attacker could also cause an affected system to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to a buffer overflow condition in the DHCP relay subsystem of the affected software. An attacker could exploit this vulnerability by sending a crafted DHCP Version 4 (DHCPv4) packet to an affected system. A successful exploit could allow the attacker to execute arbitrary code and gain full control of the affected system or cause the affected system to reload, resulting in a DoS condition. Cisco Bug IDs: CSCsm45390, CSCuw77959.",
  "id": "GHSA-q8rh-r33q-hvj2",
  "modified": "2025-10-22T00:31:29Z",
  "published": "2022-05-13T01:38:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-12240"
    },
    {
      "type": "WEB",
      "url": "https://quickview.cloudapps.cisco.com/quickview/bug/CSCsm45390"
    },
    {
      "type": "WEB",
      "url": "https://quickview.cloudapps.cisco.com/quickview/bug/CSCuw77959"
    },
    {
      "type": "WEB",
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-dhcp"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-12240"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/101034"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1039445"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2017-12240 (GCVE-0-2017-12240)

Vulnerability from cvelistv5 – Published: 2017-09-28 07:00 – Updated: 2025-10-21 23:55

Summary

Severity ?

No CVSS data available.

CWE

CWE-20

Assigner

cisco

References

URL

Tags

	https://quickview.cloudapps.cisco.com/quickview/b…	x_refsource_CONFIRM
	https://quickview.cloudapps.cisco.com/quickview/b…	x_refsource_CONFIRM
	http://www.securityfocus.com/bid/101034	vdb-entryx_refsource_BID
	https://tools.cisco.com/security/center/content/C…	x_refsource_CONFIRM
	http://www.securitytracker.com/id/1039445	vdb-entryx_refsource_SECTRACK

Impacted products

	Vendor	Product	Version
	n/a	Cisco IOS and IOS XE	Affected: Cisco IOS and IOS XE

Show details on NVD website

JSON

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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-Q8RH-R33Q-HVJ2

CVE-2017-12240 (GCVE-0-2017-12240)

Tags

Sightings

Nomenclature