Arista Networks is committed to maintaining the highest standards of security across our product portfolio. Leveraging extensive testing and monitoring of vulnerabilities to isolate and neutralize threats early, Arista's Product Security Incident Response Team (PSIRT) provides global coverage for public reporting of possible security vulnerabilities across the product portfolio.
The PSIRT team monitors industry-wide vulnerability reporting as well as providing a single point of contact for customers and interested third parties to investigate and identify potential threats. The PSIRT team also works to communicate these issues back to the user community in a timely manner.
Arista's approach to vulnerability management and links to best practice guidelines can be found here.
Arista PSIRT is happy to work with researchers on discovered vulnerabilities in Arista products, the assignment of CVEs, and timelines for responsible disclosure. If a researcher discovers a new vulnerability they will be acknowledged in the advisory related to the vulnerability. Arista PSIRT is interested in receiving reports on issues affecting features in both Arista code as well as Open Source Software used in Arista products. Security issues found in Open Source Software which do not affect Arista products are out of the scope of Arista and should be referred to the appropriate CNA found here.
The following advisories and referenced materials are provided on an "as is" basis for use at your own risk. Arista Networks reserves the right to change or update the advisories without notice at any time.
On affected platforms running Arista EOS with VXLAN configured, malformed or truncated packets received over a VXLAN tunnel and forwarded in hardware can cause egress ports to be unable to forward packets. The device will continue to be susceptible to the issue until remediation is in place.
The CVE-ID tracking this issue: CVE-2023-24548
On affected platforms running Arista EOS with mirroring to multiple destinations configured, an internal system error may trigger a kernel panic and cause system reload.
The CVE-ID tracking this issue: CVE-2023-3646
On the affected platforms running EOS, a malformed DHCP packet might cause the DHCP relay agent to restart. Arista is not aware of any malicious uses of this issue in customer networks.
The CVE-ID tracking this issue: CVE-2023-24510
On affected platforms running Arista EOS, an authorized attacker with permissions to perform gNMI requests could craft a request allowing it to update arbitrary configurations in the switch. This situation occurs only when the Streaming Telemetry Agent (referred to as the TerminAttr agent) is enabled and gNMI access is configured on the agent.
This situation occurs only when the Streaming Telemetry Agent (referred to as the TerminAttr agent) is enabled and gNMI access is configured on the agent.
The CVE-ID tracking this issue: CVE-2023-24512
This advisory details the impact of two issues discovered on Arista CloudEOS;
CVE-2023-24545: On affected platforms running Arista CloudEOS an issue in the Software Forwarding Engine (Sfe) can lead to a potential denial of service attack by sending malformed packets to the switch. This causes a leak of packet buffers and if enough malformed packets are received, the switch may eventually stop forwarding traffic.
CVE-2023-24513: On affected platforms running Arista CloudEOS a size check bypass issue in the Software Forwarding Engine (Sfe) may allow buffer over reads in later code. Additionally, depending on configured options this may cause a recomputation of the TCP checksum which could be leveraged in DDoS attacks.
On affected platforms running Arista EOS with SNMP configured and the snmpd process is running, a specially crafted SNMP packet can cause a memory leak in the snmpd process. This may result in the snmpd processing being terminated (causing SNMP requests to time out until snmpd is automatically restarted) and potential memory resource exhaustion for other processes on the switch. The vulnerability does not have any confidentiality or integrity impacts to the system.
On affected versions of the CloudVision Portal improper access controls on the connection from devices to CloudVision could enable a malicious actor with network access to CloudVision to get broader access to telemetry and configuration data within the system than intended. This advisory impacts the Arista CloudVision Portal product when run on-premise. It does not impact CloudVision as-a-Service.
On affected modular platforms running Arista EOS equipped with both redundant supervisor modules and having the redundancy protocol enabled, an existing unprivileged user can login to the standby supervisor as a root user, leading to a privilege escalation. Valid user credentials are required in order to exploit this vulnerability.
Arista Networks is providing this security update in response to the following related security vulnerabilities:
On Tuesday, November 1st it was announced that OpenSSL versions from 3.0.0 to 3.0.6 are vulnerable to two high severity vulnerabilities that if exploited, could result in significant disclosure of sensitive information from memory, remote compromise of system private keys, and potentially remote code execution.
This advisory documents the impact of 4 publicly disclosed vulnerabilities within Ethernet encapsulation protocols on Arista products. These issues affect multiple networking vendors and the coordination of this disclosure has been handled by IEEE. Affected Arista products include EOS systems and Wi-Fi Access Point. The affected software releases are listed below.