Headline
CVE-2023-39248: DSA-2023-278: Dell Networking OS10 Security Updates for Uncontrolled resource Consumption.
Dell OS10 Networking Switches running 10.5.2.x and above contain an Uncontrolled Resource Consumption (Denial of Service) vulnerability, when switches are configured with VLT and VRRP. A remote unauthenticated user can cause the network to be flooded leading to Denial of Service for actual network users. This is a high severity vulnerability as it allows an attacker to cause an outage of network. Dell recommends customers to upgrade at the earliest opportunity.
Impact
High
Details
Proprietary Code CVEs
Description
CVSS Base Score
CVSS Vector String
CVE-2023-39248
Dell OS10 Networking Switches running 10.5.2.x and above contain an Uncontrolled Resource Consumption (Denial of Service) vulnerability, when switches are configured with VLT and VRRP. A remote unauthenticated
user can cause the network to be flooded leading to Denial of Service for actual network users. This is a high severity vulnerability as it allows an attacker to cause an outage of network. Dell recommends customers to upgrade at the earliest opportunity.
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Proprietary Code CVEs
Description
CVSS Base Score
CVSS Vector String
CVE-2023-39248
Dell OS10 Networking Switches running 10.5.2.x and above contain an Uncontrolled Resource Consumption (Denial of Service) vulnerability, when switches are configured with VLT and VRRP. A remote unauthenticated
user can cause the network to be flooded leading to Denial of Service for actual network users. This is a high severity vulnerability as it allows an attacker to cause an outage of network. Dell recommends customers to upgrade at the earliest opportunity.
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Dell Technologies recommends all customers consider both the CVSS base score and any relevant temporal and environmental scores that may impact the potential severity associated with a particular security vulnerability.
Affected Products and Remediation
CVEs Addressed
Product
Software/Firmware
Affected Versions
Remediated Versions
Link
CVE-2023-39248
Dell Networking OS10
10.5.5.5
10.5.5.6
Dell SmartFabric OS10, 10.5.5.6, GNS3 Bundle
CVEs Addressed
Product
Software/Firmware
Affected Versions
Remediated Versions
Link
CVE-2023-39248
Dell Networking OS10
10.5.5.5
10.5.5.6
Dell SmartFabric OS10, 10.5.5.6, GNS3 Bundle
Workarounds and Mitigations
CVE ID
Workaround and Mitigation
CVE-2023-39248
Workaround: Not enabling VRRP when VLT is enabled prevents the vulnerability from being exploitable.
Mitigation: Example : Enable flooding prevention. CLI/WebUI
For both Workaround or Mitigation; this must be something our Customers should be able to act within the administrative consoles of the product (CLi/WebUi)
If none of either then simply write : None
Revision History
Revision
Date
Description
1.0
2023-12-04
Initial Release
Related Information
Dell Security Advisories and Notices
Dell Vulnerability Response Policy
CVSS Scoring Guide