CVE-2023-24548

Public Exploit
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

Description

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.

Remediation

Solution:

  • The recommended resolution is to upgrade to a remediated software version at your earliest convenience. Arista recommends customers move to the latest version of each release that contains all the fixes listed below. For more information about upgrading see EOS User Manual: Upgrades and Downgrades https://www.arista.com/en/um-eos/eos-upgrades-and-downgrades CVE-2023-24548 has been fixed in the following releases: * 4.30.0F and later releases in the 4.30.x train * 4.29.0F and later releases in the 4.29.x train * 4.28.0F and later releases in the 4.28.x train * 4.27.0F and later releases in the 4.27.x train * 4.26.0F and later releases in the 4.26.x train * 4.25.1F and later releases in the 4.25.x train No remediation is planned for EOS software versions that are beyond their standard EOS support lifecycle https://www.arista.com/en/support/product-documentation/eos-life-cycle-policy (i.e. 4.22, 4.23).

Workaround:

  • There is no known mitigation for the issue. The recommended resolution is to upgrade to a remediated software version at your earliest convenience.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.05%
Vendor Advisory arista.com
Affected: Arista Networks EOS
Published at:
Updated at:

References

Link Tags
https://www.arista.com/en/support/advisories-notices/security-advisory/18043-security-advisory-0089 vendor advisory exploit

Frequently Asked Questions

What is the severity of CVE-2023-24548?
CVE-2023-24548 has been scored as a medium severity vulnerability.
How to fix CVE-2023-24548?
To fix CVE-2023-24548: The recommended resolution is to upgrade to a remediated software version at your earliest convenience. Arista recommends customers move to the latest version of each release that contains all the fixes listed below. For more information about upgrading see EOS User Manual: Upgrades and Downgrades https://www.arista.com/en/um-eos/eos-upgrades-and-downgrades CVE-2023-24548 has been fixed in the following releases: * 4.30.0F and later releases in the 4.30.x train * 4.29.0F and later releases in the 4.29.x train * 4.28.0F and later releases in the 4.28.x train * 4.27.0F and later releases in the 4.27.x train * 4.26.0F and later releases in the 4.26.x train * 4.25.1F and later releases in the 4.25.x train No remediation is planned for EOS software versions that are beyond their standard EOS support lifecycle https://www.arista.com/en/support/product-documentation/eos-life-cycle-policy (i.e. 4.22, 4.23).
Is CVE-2023-24548 being actively exploited in the wild?
It is possible that CVE-2023-24548 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-24548?
CVE-2023-24548 affects Arista Networks EOS.
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