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CiscoCVELIST:CVE-2022-20946

HistoryNov 10, 2022 - 5:29 p.m.

CVE-2022-20946

2022-11-1017:29:08

cisco

www.cve.org

cisco firepower threat defense

vulnerability

denial of service

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8.6 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

58.8%

JSON

A vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

This vulnerability is due to a memory handling error that occurs when GRE traffic is processed. An attacker could exploit this vulnerability by sending a crafted GRE payload through an affected device. A successful exploit could allow the attacker to cause the device to restart, resulting in a DoS condition.

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-gre-dos-hmedHQPM [“https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-gre-dos-hmedHQPM”]

This advisory is part of the November 2022 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication.

CNA Affected

[
  {
    "vendor": "Cisco",
    "product": "Cisco Firepower Threat Defense Software",
    "versions": [
      {
        "version": "6.6.0",
        "status": "affected"
      },
      {
        "version": "6.6.0.1",
        "status": "affected"
      },
      {
        "version": "6.6.1",
        "status": "affected"
      },
      {
        "version": "6.6.3",
        "status": "affected"
      },
      {
        "version": "6.6.4",
        "status": "affected"
      },
      {
        "version": "6.6.5",
        "status": "affected"
      },
      {
        "version": "6.6.5.1",
        "status": "affected"
      },
      {
        "version": "6.6.5.2",
        "status": "affected"
      },
      {
        "version": "6.4.0",
        "status": "affected"
      },
      {
        "version": "6.4.0.1",
        "status": "affected"
      },
      {
        "version": "6.4.0.3",
        "status": "affected"
      },
      {
        "version": "6.4.0.2",
        "status": "affected"
      },
      {
        "version": "6.4.0.4",
        "status": "affected"
      },
      {
        "version": "6.4.0.5",
        "status": "affected"
      },
      {
        "version": "6.4.0.6",
        "status": "affected"
      },
      {
        "version": "6.4.0.7",
        "status": "affected"
      },
      {
        "version": "6.4.0.8",
        "status": "affected"
      },
      {
        "version": "6.4.0.9",
        "status": "affected"
      },
      {
        "version": "6.4.0.10",
        "status": "affected"
      },
      {
        "version": "6.4.0.11",
        "status": "affected"
      },
      {
        "version": "6.4.0.12",
        "status": "affected"
      },
      {
        "version": "6.4.0.13",
        "status": "affected"
      },
      {
        "version": "6.4.0.14",
        "status": "affected"
      },
      {
        "version": "6.4.0.15",
        "status": "affected"
      },
      {
        "version": "6.7.0",
        "status": "affected"
      },
      {
        "version": "6.7.0.1",
        "status": "affected"
      },
      {
        "version": "6.7.0.2",
        "status": "affected"
      },
      {
        "version": "6.7.0.3",
        "status": "affected"
      },
      {
        "version": "7.0.0",
        "status": "affected"
      },
      {
        "version": "7.0.0.1",
        "status": "affected"
      },
      {
        "version": "7.0.1",
        "status": "affected"
      },
      {
        "version": "7.0.1.1",
        "status": "affected"
      },
      {
        "version": "7.0.2",
        "status": "affected"
      },
      {
        "version": "7.0.2.1",
        "status": "affected"
      },
      {
        "version": "7.0.3",
        "status": "affected"
      },
      {
        "version": "7.1.0",
        "status": "affected"
      },
      {
        "version": "7.1.0.1",
        "status": "affected"
      },
      {
        "version": "7.1.0.2",
        "status": "affected"
      }
    ]
  }
]

References

sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-gre-dos-hmedHQPM

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8.6 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

58.8%

JSON

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