CVE-2022-20679

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 15-04-2022 05:15

Last modified: - 25-04-2022 06:24

Total changes: - 2

Description

A vulnerability in the IPSec decryption routine of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to buffer exhaustion that occurs while traffic on a configured IPsec tunnel is being processed. An attacker could exploit this vulnerability by sending traffic to an affected device that has a maximum transmission unit (MTU) of 1800 bytes or greater. A successful exploit could allow the attacker to cause the device to reload. To exploit this vulnerability, the attacker may need access to the trusted network where the affected device is in order to send specific packets to be processed by the device. All network devices between the attacker and the affected device must support an MTU of 1800 bytes or greater. This access requirement could limit the possibility of a successful exploit.

Common Vulnerability Scoring System (CVSS)

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

Low

Attack complexity

Network

Attack vector

High

Availability

None

Confidentiality

None

Integrity

Low

Privileges required

Changed

Scope

None

User interaction

7.7

Base score

3.1

4.0

Exploitability score

Impact score

Verification logic

vendor=cisco AND product=ios_xe

vendor=cisco AND product=ios_xe AND version=3.15.1xbs

vendor=cisco AND product=ios_xe AND version=3.15.2xbs

vendor=cisco AND product=ios_xe AND version=16.8.1

vendor=cisco AND product=ios_xe AND version=16.8.1a

vendor=cisco AND product=ios_xe AND version=16.8.1b

vendor=cisco AND product=ios_xe AND version=16.8.1c

vendor=cisco AND product=ios_xe AND version=16.8.1d

vendor=cisco AND product=ios_xe AND version=16.8.1e

vendor=cisco AND product=ios_xe AND version=16.8.1s

vendor=cisco AND product=ios_xe AND version=16.8.2

vendor=cisco AND product=ios_xe AND version=16.8.3

vendor=cisco AND product=ios_xe AND version=16.9.1

vendor=cisco AND product=ios_xe AND version=16.9.1a

vendor=cisco AND product=ios_xe AND version=16.9.1b

vendor=cisco AND product=ios_xe AND version=16.9.1c

vendor=cisco AND product=ios_xe AND version=16.9.1d

vendor=cisco AND product=ios_xe AND version=16.9.1s

vendor=cisco AND product=ios_xe AND version=16.9.2

vendor=cisco AND product=ios_xe AND version=16.9.2a

vendor=cisco AND product=ios_xe AND version=16.9.2s

vendor=cisco AND product=ios_xe AND version=16.9.3

vendor=cisco AND product=ios_xe AND version=16.9.3a

vendor=cisco AND product=ios_xe AND version=16.9.3h

vendor=cisco AND product=ios_xe AND version=16.9.3s

vendor=cisco AND product=ios_xe AND version=16.9.4

vendor=cisco AND product=ios_xe AND version=16.9.4c

vendor=cisco AND product=ios_xe AND version=16.9.5

vendor=cisco AND product=ios_xe AND version=16.9.5f

vendor=cisco AND product=ios_xe AND version=16.9.6

vendor=cisco AND product=ios_xe AND version=16.9.7

vendor=cisco AND product=ios_xe AND version=16.9.8

vendor=cisco AND product=ios_xe AND version=16.10.1

vendor=cisco AND product=ios_xe AND version=16.10.1a

vendor=cisco AND product=ios_xe AND version=16.10.1b

vendor=cisco AND product=ios_xe AND version=16.10.1c

vendor=cisco AND product=ios_xe AND version=16.10.1d

vendor=cisco AND product=ios_xe AND version=16.10.1e

vendor=cisco AND product=ios_xe AND version=16.10.1f

vendor=cisco AND product=ios_xe AND version=16.10.1g

vendor=cisco AND product=ios_xe AND version=16.10.1s

vendor=cisco AND product=ios_xe AND version=16.10.2

vendor=cisco AND product=ios_xe AND version=16.10.3

vendor=cisco AND product=ios_xe AND version=16.11.1

vendor=cisco AND product=ios_xe AND version=16.11.1a

vendor=cisco AND product=ios_xe AND version=16.11.1b

vendor=cisco AND product=ios_xe AND version=16.11.1c

vendor=cisco AND product=ios_xe AND version=16.11.1s

vendor=cisco AND product=ios_xe AND version=16.11.2

vendor=cisco AND product=ios_xe AND version=16.12.1

vendor=cisco AND product=ios_xe AND version=16.12.1a

vendor=cisco AND product=ios_xe AND version=16.12.1c

vendor=cisco AND product=ios_xe AND version=16.12.1s

vendor=cisco AND product=ios_xe AND version=16.12.1t

vendor=cisco AND product=ios_xe AND version=16.12.1w

vendor=cisco AND product=ios_xe AND version=16.12.1x

vendor=cisco AND product=ios_xe AND version=16.12.1y

vendor=cisco AND product=ios_xe AND version=16.12.1z

vendor=cisco AND product=ios_xe AND version=16.12.1z1

vendor=cisco AND product=ios_xe AND version=16.12.1z2

vendor=cisco AND product=ios_xe AND version=16.12.2

vendor=cisco AND product=ios_xe AND version=16.12.2a

vendor=cisco AND product=ios_xe AND version=16.12.2s

vendor=cisco AND product=ios_xe AND version=16.12.2t

vendor=cisco AND product=ios_xe AND version=16.12.3

vendor=cisco AND product=ios_xe AND version=16.12.3a

vendor=cisco AND product=ios_xe AND version=16.12.3s

vendor=cisco AND product=ios_xe AND version=16.12.4

vendor=cisco AND product=ios_xe AND version=16.12.4a

vendor=cisco AND product=ios_xe AND version=16.12.5

vendor=cisco AND product=ios_xe AND version=16.12.5a

vendor=cisco AND product=ios_xe AND version=16.12.5b

vendor=cisco AND product=ios_xe AND version=16.12.6

vendor=cisco AND product=ios_xe AND version=16.12.6a

vendor=cisco AND product=ios_xe AND version=17.1.1

vendor=cisco AND product=ios_xe AND version=17.1.1a

vendor=cisco AND product=ios_xe AND version=17.1.1s

vendor=cisco AND product=ios_xe AND version=17.1.1t

vendor=cisco AND product=ios_xe AND version=17.1.2

vendor=cisco AND product=ios_xe AND version=17.1.3

vendor=cisco AND product=ios_xe AND version=17.2.1

vendor=cisco AND product=ios_xe AND version=17.2.1a

vendor=cisco AND product=ios_xe AND version=17.2.1r

vendor=cisco AND product=ios_xe AND version=17.2.1v

vendor=cisco AND product=ios_xe AND version=17.2.2

vendor=cisco AND product=ios_xe AND version=17.2.3

vendor=cisco AND product=ios_xe AND version=17.3.1

vendor=cisco AND product=ios_xe AND version=17.3.1a

vendor=cisco AND product=ios_xe AND version=17.3.1w

vendor=cisco AND product=ios_xe AND version=17.3.1x

vendor=cisco AND product=ios_xe AND version=17.3.1z

vendor=cisco AND product=ios_xe AND version=17.3.2

vendor=cisco AND product=ios_xe AND version=17.3.2a

vendor=cisco AND product=ios_xe AND version=17.3.3

vendor=cisco AND product=ios_xe AND version=17.3.3a

vendor=cisco AND product=ios_xe AND version=17.3.4

vendor=cisco AND product=ios_xe AND version=17.3.4a

vendor=cisco AND product=ios_xe AND version=17.3.4b

vendor=cisco AND product=ios_xe AND version=17.3.4c

vendor=cisco AND product=ios_xe AND version=17.4.1

vendor=cisco AND product=ios_xe AND version=17.4.1a

vendor=cisco AND product=ios_xe AND version=17.4.1b

vendor=cisco AND product=ios_xe AND version=17.4.1c

vendor=cisco AND product=ios_xe AND version=17.4.2

vendor=cisco AND product=ios_xe AND version=17.4.2a

vendor=cisco AND product=ios_xe AND version=17.5.1

vendor=cisco AND product=ios_xe AND version=17.5.1a

vendor=cisco AND product=ios_xe AND version=17.6.1

vendor=cisco AND product=ios_xe AND version=17.6.1a

vendor=cisco AND product=ios_xe AND version=17.6.1w

Reference

20220413 Cisco IOS XE Software IPSec Denial of Service Vulnerability-Vendor Advisory

Keywords

CVE-2022-20679

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2022-20679

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures