CVE-2020-15898

In Arista EOS malformed packets can be incorrectly forwarded across VLAN boundaries in one direction. This vulnerability is only susceptible to exploitation by unidirectional traffic ex. UDP and not bidirectional traffic ex. TCP. This affects: EOS 7170 platforms version 4.21.4.1F and below releas...

CVE-2020-15898

CVE-2020-15898 affects Arista EOS: malformed packets can be forwarded across VLAN boundaries in one direction, exploitable by unidirectional traffic (e.g., UDP). Affected: EOS X-Series and 7170 platforms with specific 4.21.x–4.24.x trains (see advisory 56). Impact is VLAN-crossing DoS-like behavi...

CVE-2020-24360

An issue with ARP packets in Arista’s EOS affecting the 7800R3, 7500R3, and 7280R3 series of products may result in issues that cause a kernel crash, followed by a device reload. The affected Arista EOS versions are: 4.24.2.4F and below releases in the 4.24.x train; 4.23.4M and below releases in...

CVE-2020-24360

Summary of CVE-2020-24360 (Arista EOS ARP issue) An ARP-related vulnerability affects Arista EOS on 7500R3, 7800R3, and 7280R3 platforms running EOS releases in the 4.24.x, 4.23.x, or 4.22.x trains. The issue can cause a kernel crash leading to a device reload, with a noted crash signature in aff...

CVE-2020-26569

In EVPN VxLAN setups in Arista EOS, specific malformed packets can lead to incorrect MAC to IP bindings and as a result packets can be incorrectly forwarded across VLAN boundaries. This can result in traffic being discarded on the receiving VLAN. This affects versions: 4.21.12M and below releases...

CVE-2020-26569

In EVPN VxLAN setups in Arista EOS, specific malformed packets can lead to incorrect MAC to IP bindings and as a result packets can be incorrectly forwarded across VLAN boundaries. This can result in traffic being discarded on the receiving VLAN. This affects versions: 4.21.12M and below releases...

Design/Logic Flaw

In EVPN VxLAN setups in Arista EOS, specific malformed packets can lead to incorrect MAC to IP bindings and as a result packets can be incorrectly forwarded across VLAN boundaries. This can result in traffic being discarded on the receiving VLAN. This affects versions: 4.21.12M and below releases...

CVE-2020-26569

Summary: CVE-2020-26569 affects Arista EOS in EVPN VXLAN with SVIs. Malformed EVPN VXLAN packets can cause incorrect MAC-to-IP bindings, resulting in traffic being discarded or forwarded across VLAN boundaries. Affected releases (EOS): 4.21.x ≤ 4.21.12M, 4.22.x ≤ 4.22.7M, 4.23.x ≤ 4.23.5M, 4.24.x...

CVE-2020-26569

In EVPN VxLAN setups in Arista EOS, specific malformed packets can lead to incorrect MAC to IP bindings and as a result packets can be incorrectly forwarded across VLAN boundaries. This can result in traffic being discarded on the receiving VLAN. This affects versions: 4.21.12M and below releases...

Arista Networks Arista EOS Security Breach

Arista Networks Arista EOS is a scalable operating system for data centers and cloud network centers from Arista Networks, Inc. Arista EOS builds cloud architectures that scale to hundreds of thousands of compute and storage nodes with management and provisioning capabilities for large-scale jobs...

Arista EOS Security Breach

Arista Networks Arista EOS is a scalable operating system for data centers and cloud network centers from Arista Networks, Inc. Arista EOS builds cloud architectures that scale to hundreds of thousands of compute and storage nodes with management and provisioning capabilities for large-scale jobs...

Arista EOS Security Breach

Arista Networks Arista EOS is a scalable operating system for data centers and cloud network centers from Arista Networks, Inc. Arista EOS builds cloud architectures that scale to hundreds of thousands of compute and storage nodes with management and provisioning capabilities for large-scale jobs...

Vulnerabilities fixed in Arista EOS

Arista has fixed several vulnerabilities in EOS. The vulnerabilities marked CVE-2020-15897, CVE-2020-15898, CVE-2020-24360 and CVE-2020-26569 allow a malicious person to cause cause a denial-of-service DoS. To do this, rogue network traffic to the device. The vulnerability with reference...

Security Advisory 0055

Security Advisory 0055 PDF Date: December 16th, 2020 Version: 1.0 Revision | Date | Changes ---|---|--- 1.0 | December 16th, 2020 | Initial Release The CVE-ID tracking this issue: CVE-2020-26568 CVSSv3.1 Base Score: 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Description This advisory...

Security Advisory 0057

Security Advisory 0057 PDF Date: December 16th, 2020 Version: 1.0 Revision | Date | Changes ---|---|--- 1.0 | December 16th, 2020 | Initial Release The CVE-ID tracking this issue: CVE-2020-26569 CVSSv3.1 Base Score: 5.9/10 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Description This advisory...

Security Advisory 0059

Security Advisory 0059 . CSAF PDF Date: December 16th, 2020 Version: 1.0 Revision | Date | Changes ---|---|--- 1.0 | December 16th, 2020 | Initial Release The CVE-ID tracking this issue is: CVE-2020-24360 CVSSv3.1 Base Score: 7.4/10 AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H Description This advisory...

Security Advisory 0056

Security Advisory 0056 PDF Date: December 16th, 2020 Version: 1.0 Revision | Date | Changes ---|---|--- 1.0 | December 16th, 2020 | Initial Release The CVE-ID tracking this issue: CVE-2020-15898 CVSSv3 Base Score: 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Description This advisory document...

CVE-2020-15897

Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause traffic loss or incorrect forwarding of traffic via a malformed link-state PDU to the IS-IS router...

Code injection

Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause traffic loss or incorrect forwarding of traffic via a malformed link-state PDU to the IS-IS router...

CVE-2020-15897

Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause traffic loss or incorrect forwarding of traffic via a malformed link-state PDU to the IS-IS router...