CVE-2022-20915
CVSS V2 None
CVSS V3 High 7.4
Description
A vulnerability in the implementation of IPv6 VPN over MPLS (6VPE) with Zone-Based Firewall (ZBFW) of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper error handling of an IPv6 packet that is forwarded from an MPLS and ZBFW-enabled interface in a 6VPE deployment. An attacker could exploit this vulnerability by sending a crafted IPv6 packet sourced from a device on the IPv6-enabled virtual routing and forwarding (VRF) interface through the affected device. A successful exploit could allow the attacker to reload the device, resulting in a DoS condition.
Overview
- CVE ID
- CVE-2022-20915
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-10-10T21:15:10
- Last Modified Date
- 2022-10-13T19:57:36
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:cisco:ios_xe:-:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- Attack Vector
- ADJACENT_NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 7.4
- Base Severity
- HIGH
- Exploitability Score
- 2.8
- Impact Score
- 4
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-6vpe-dos-tJBtf5Zv |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2022-20915 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20915 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-10-10 22:01:00 | Added to TrackCVE | |||
| 2022-12-07 05:57:18 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-07 05:57:18 | 2022-10-10T21:15Z | 2022-10-10T21:15:10 | CVE Published Date | updated |
| 2022-12-07 05:57:18 | 2022-10-13T19:57:36 | CVE Modified Date | updated | |
| 2022-12-07 05:57:18 | Analyzed | Vulnerability Status | updated |