CVE-2024-9448

On affected platforms running Arista EOS with Traffic Policies configured the vulnerability will cause received untagged packets not to hit Traffic Policy rules that they are expected to hit. If the rule was to drop the packet, the packet will not be dropp

Description

On affected platforms running Arista EOS with Traffic Policies configured the vulnerability will cause received untagged packets not to hit Traffic Policy rules that they are expected to hit. If the rule was to drop the packet, the packet will not be dropped and instead will be forwarded as if the rule was not in place. This could lead to packets being delivered to unexpected destinations.

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-2024-9448 has been fixed in the following releases: * 4.33.1F and later releases in the 4.33.x train * 4.32.4M and later releases in the 4.32.x train * 4.31.6M and later releases in the 4.31.x train * 4.30.9M and later releases in the 4.30.x train

Workaround:

  • There is no mitigation other than to not use the Traffic Policy feature where it would be expected to match on receipt of untagged packets.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.05%
Affected: Arista Networks EOS
Published at:
Updated at:

References

Link Tags
https://www.arista.com/en/support/advisories-notices/security-advisory/21121-security-advisory-0112

Frequently Asked Questions

What is the severity of CVE-2024-9448?
CVE-2024-9448 has been scored as a high severity vulnerability.
How to fix CVE-2024-9448?
To fix CVE-2024-9448: 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-2024-9448 has been fixed in the following releases: * 4.33.1F and later releases in the 4.33.x train * 4.32.4M and later releases in the 4.32.x train * 4.31.6M and later releases in the 4.31.x train * 4.30.9M and later releases in the 4.30.x train
Is CVE-2024-9448 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-9448 is being actively exploited. 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-2024-9448?
CVE-2024-9448 affects Arista Networks EOS.
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