On affected platforms running Arista EOS with mirroring to multiple destinations configured, an internal system error may trigger a kernel panic and cause system reload.
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-2023-3646 has been fixed in the following releases: * 4.28.6M and later releases in the 4.28.x train * 4.29.2F and later releases in the 4.29.x train HotfixThe following hotfix can be applied to remediate CVE-2023-3646. The hotfix only applies to the releases listed below and no other releases. All other versions require upgrading to a release containing the fix (as listed above): * 4.28.2F through 4.28.5.1M releases in the 4.28.x train * 4.29.1F and earlier releases in the 4.29.X train Note: Installing/uninstalling the Hotfix will result in a restart of the SandFapNi agent and an associated reprogramming of the switch chip. This process could result in outages from 5-20 minutes, depending on the number of active ports in the particular system. To determine which hotfix to use, run “show version” from the CLI and refer to the “Architecture” Field. Version: 1.0 URL: SecurityAdvisory88_CVE-2023-3646_Hotfix_i686.swix https://www.arista.com/support/advisories-notices/sa-download/ SWIX hash:(SHA-512) 9c01d1bc1d657879e1a1b657a8c0dab090d589efc3f2c64e9cac1ae0356fce14496809893bffb0892b1505f8b4ee25cad0064bd7315ba6737dc5fdb200539
The suggestion to prevent this issue is to remove any mirroring config #show monitor session No sessions created This example confirms that the system does not have any mirroring config present which will prevent this issue from occurring.
| Product | Vulnerable range | Fixed version | Advisory |
|---|---|---|---|
| Arista Networks EOS | >=4.28.2F<=4.28.5.1M | 4.28.5.1M | advisory ↗ |
| Arista Networks EOS | >=4.29.0<=4.29.1F | 4.29.1F | advisory ↗ |