CVE-2019-14810
MEDIUMArista EOS 4.19-4.19.12M, 4.20-4.20.14M, 4.21.0F-4.21.7.1M, 4.22-4.22.1F DoS via LDP Race Condition
Title source: llmDescription
A vulnerability has been found in the implementation of the Label Distribution Protocol (LDP) protocol in EOS. Under race conditions, the LDP agent can establish an LDP session with a malicious peer potentially allowing the possibility of a Denial of Service (DoS) attack on route updates and in turn potentially leading to an Out of Memory (OOM) condition that is disruptive to traffic forwarding. Affected EOS versions include: 4.22 release train: 4.22.1F and earlier releases 4.21 release train: 4.21.0F - 4.21.2.3F, 4.21.3F - 4.21.7.1M 4.20 release train: 4.20.14M and earlier releases 4.19 release train: 4.19.12M and earlier releases End of support release trains (4.18 and 4.17)
References (2)
Core 2
Core References
Vendor Advisory x_refsource_misc
https://www.arista.com/en/support/advisories-notices
Vendor Advisory x_refsource_confirm
https://www.arista.com/en/support/advisories-notices/security-advisories/8321-security-advisory-42
Scores
CVSS v3
5.9
EPSS
0.0067
EPSS Percentile
47.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-362
Status
published
Products (4)
arista/extensible_operating_system
4.17
arista/extensible_operating_system
4.18
arista/extensible_operating_system
4.22.1f
arista/extensible_operating_system
4.19 - 4.19.12m
Published
Oct 10, 2019
Tracked Since
Feb 18, 2026