CVE detail

CVE-2023-3646 — CVE-2023-3646

Published 2023-08-29 · Modified 2026-06-17 · Vendor arista · Product eos · Source nvd
MEDIUM
severity
CVSS-derived band
5.9
CVSS v3
0–10 scale
0.0056
EPSS probability
exploitation probability, 30d
44.0%
EPSS percentile
percentile vs all CVEs
NOT LISTED
CISA KEV
known exploited catalog

Description

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.

Remediation

vendor remediation guidance

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

workarounds

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.

ProductVulnerable rangeFixed versionAdvisory
Arista Networks EOS>=4.28.2F<=4.28.5.1M 4.28.5.1M advisory ↗
Arista Networks EOS>=4.29.0<=4.29.1F4.29.1Fadvisory ↗

References

cvedb.io · NVD · CISA KEV · FIRST EPSS · vendor advisories (CVE Program List v5). Informational only, no warranty — verify every remediation against the vendor advisory before acting on it. This product uses data from the NVD API but is not endorsed or certified by the NVD, CISA, FIRST.org or any vendor named. CVE® is a registered trademark of The MITRE Corporation.