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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.

Quick assessment

Affected
Arista Networks EOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Arista Networks CloudEOS是 EOS （Arista Networks Extensible Operating System）的新平台版本，支持 Amazon Web Service (AWS)、Microsoft Azure 和其他公共云。 Arista Networks CloudEOS 存在安全漏洞，该漏洞源于通过向交换机发送格式错误的数据包导致拒绝服务攻击。受影响的产品和版本：Arista CloudEOS 4.29.1F 及以下版本，4.28.4M 及以下版本，4.27.

CVSS 7.5 · High EPSS 0.78% · P54
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I. Basic Information for CVE-2023-24545

Vulnerability Information
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Vulnerability Title
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.
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Arista Networks CloudEOS 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Arista Networks CloudEOS是 EOS （Arista Networks Extensible Operating System）的新平台版本，支持 Amazon Web Service (AWS)、Microsoft Azure 和其他公共云。 Arista Networks CloudEOS 存在安全漏洞，该漏洞源于通过向交换机发送格式错误的数据包导致拒绝服务攻击。受影响的产品和版本：Arista CloudEOS 4.29.1F 及以下版本，4.28.4M 及以下版本，4.27.
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Arista Networks EOS 4.29.0 ~ 4.29.1F -

II. Public POCs for CVE-2023-24545

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III. Intelligence Information for CVE-2023-24545

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Other References for CVE-2023-24545 (1)

Same Patch Batch · Arista Networks · 2023-04-12 · 3 CVEs total

CVE-2023-24513 6.5 MEDIUM On affected platforms running Arista CloudEOS a size check bypass issue in the Software Fo
CVE-2023-24511 5.3 MEDIUM On affected platforms running Arista EOS with SNMP configured, a specially crafted packet

IV. Related Vulnerabilities

Same product: EOS
Same vendor: Arista Networks
Same weakness: CWE-400

V. Comments for CVE-2023-24545

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