QID 44005

Date Published: 2023-03-27

QID 44005: Arista EOS Denial of Service (DoS) Vulnerability (SA0075)

Arista EOS

Arista EOS is a fully programmable and highly modular, Linux-based network operation system, using familiar industry-standard CLI, and runs a single binary software image across the Arista switching family.

Affected EOS versions:
4.27.3 and below releases in the 4.27.x train
4.26.5 and below releases in the 4.26.x train
4.25.8 and below releases in the 4.25.x train
4.24.9 and below release in the 4.24.x train
4.23.11 and below release in the 4.23.x train
4.22.x train

QID Detection Logic (Authenticated):
The check matches Arista EOS version retrieved via Unix Auth using "show version" command.

he impact of this vulnerability is publicly disclosed vulnerability in OpenSSL which a certificate containing invalid elliptic curve parameters can cause Denial-of-Service (DoS) to the application by triggering an infinite loop.

  • CVSS V3 rated as High - 7.5 severity.
  • CVSS V2 rated as Medium - 5 severity.
    • Solution
    Refer to Arista Security Advisory SA0075 for patch details.
    Vendor References

    CVEs related to QID 44005

    CVE-2022-0778 |
    Software Advisories
    Advisory ID Software Component Link
    security-advisory-0075 URL Logo www.arista.com/en/support/advisories-notices/security-advisory/15438-security-advisory-0075
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