CVE-2022-20751

Published on: Not Yet Published

Last Modified on: 05/13/2022 02:24:00 AM UTC

CVE-2022-20751 - advisory for cisco-sa-ftd-snort-dos-hd2hFgM

Source: Mitre Source: NIST CVE.ORG Print: PDF PDF
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Certain versions of Firepower 1000 from Cisco contain the following vulnerability:

A vulnerability in the Snort detection engine integration for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause unlimited memory consumption, which could lead to a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient memory management for certain Snort events. An attacker could exploit this vulnerability by sending a series of crafted IP packets that would generate specific Snort events on an affected device. A sustained attack could cause an out of memory condition on the affected device. A successful exploit could allow the attacker to interrupt all traffic flowing through the affected device. In some circumstances, the attacker may be able to cause the device to reload, resulting in a DoS condition.

  • CVE-2022-20751 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.
  • The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
  • Affected Vendor/Software: URL Logo Cisco - Cisco Firepower Threat Defense Software version n/a

CVSS3 Score: 7.5 - HIGH

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED NONE NONE HIGH

CVSS2 Score: 7.1 - HIGH

Access
Vector
Access
Complexity
Authentication
NETWORK MEDIUM NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
NONE NONE COMPLETE

CVE References

Description Tags Link
No Description Provided tools.cisco.com
text/html
URL Logo CISCO 20220427 Cisco Firepower Threat Defense Software Snort Out of Memory Denial of Service Vulnerability

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
Hardware Device InfoCiscoFirepower 1000-AllAllAll
Hardware Device InfoCiscoFirepower 1010-AllAllAll
Hardware Device InfoCiscoFirepower 1020-AllAllAll
Hardware Device InfoCiscoFirepower 1030-AllAllAll
Hardware Device InfoCiscoFirepower 1040-AllAllAll
Hardware Device InfoCiscoFirepower 1120-AllAllAll
Hardware Device InfoCiscoFirepower 1140-AllAllAll
Hardware Device InfoCiscoFirepower 1150-AllAllAll
Hardware Device InfoCiscoFirepower 2100-AllAllAll
Hardware Device InfoCiscoFirepower 2110-AllAllAll
Hardware Device InfoCiscoFirepower 2120-AllAllAll
Hardware Device InfoCiscoFirepower 2130-AllAllAll
Hardware Device InfoCiscoFirepower 2140-AllAllAll
Hardware Device InfoCiscoFirepower 4100-AllAllAll
Hardware Device InfoCiscoFirepower 4110-AllAllAll
Hardware Device InfoCiscoFirepower 4112-AllAllAll
Hardware Device InfoCiscoFirepower 4115-AllAllAll
Hardware Device InfoCiscoFirepower 4120-AllAllAll
Hardware Device InfoCiscoFirepower 4125-AllAllAll
Hardware Device InfoCiscoFirepower 4140-AllAllAll
Hardware Device InfoCiscoFirepower 4145-AllAllAll
Hardware Device InfoCiscoFirepower 4150-AllAllAll
ApplicationCiscoFirepower Threat DefenseAllAllAllAll
ApplicationCiscoFirepower Threat Defense7.1.0AllAllAll
  • cpe:2.3:h:cisco:firepower_1000:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_1010:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_1020:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_1030:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_1040:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_1120:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_1140:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_1150:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_2100:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_2110:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_2120:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_2130:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_2140:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_4100:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_4110:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_4112:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_4115:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_4120:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_4125:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_4140:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_4145:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_4150:-:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:firepower_threat_defense:7.1.0:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @RedPacketSec Cisco Firepower Threat Defense Software denial of service | CVE-2022-20751 - redpacketsecurity.com/cisco-firepowe… 2022-04-28 10:02:02
Twitter Icon @CVEreport CVE-2022-20751 : A vulnerability in the Snort detection engine integration for Cisco Firepower Threat Defense FT… twitter.com/i/web/status/1… 2022-05-03 03:30:53
Twitter Icon @LinInfoSec Snort - CVE-2022-20751: tools.cisco.com/security/cente… 2022-05-03 06:00:18
Twitter Icon @threatmeter CVE-2022-20751 | Cisco Firepower Threat Defense Snort Detection Engine memory allocation (cisco-sa-ftd-snort-dos-hd… twitter.com/i/web/status/1… 2022-05-03 07:50:36
Reddit Logo Icon /r/netcve CVE-2022-20751 2022-05-03 04:38:29
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