emb3d - tid-405

tid-405

Vulnerability from emb3d

Type

Link

Description

Remote connections and communications can consume various device resources (e.g., network stack buffers, packet processing, socket connections) that, if exhausted, could lead to the device entering an unresponsive state. A threat actor may attempt to intentionally cause this by sending either repetitive or specially crafted messages to a device to consume resources and cause the device to become unresponsive. The unresponsive state will typically continue for at least the duration of the attack. In some cases, it may persist until the device is reset or rebooted, which may require physical operator presence.

CWE

CWE-400: Uncontrolled Resource Consumption
CWE-410: Insufficient Resource Pool

CVE-2020-3566 (GCVE-0-2020-3566)

Vulnerability from cvelistv5 – Published: 2020-08-29 15:15 – Updated: 2025-10-21 23:35

Summary

A vulnerability in the Distance Vector Multicast Routing Protocol (DVMRP) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to exhaust process memory of an affected device. The vulnerability is due to insufficient queue management for Internet Group Management Protocol (IGMP) packets. An attacker could exploit this vulnerability by sending crafted IGMP traffic to an affected device. A successful exploit could allow the attacker to cause memory exhaustion, resulting in instability of other processes. These processes may include, but are not limited to, interior and exterior routing protocols. Cisco will release software updates that address this vulnerability.

Severity ?

8.6 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CWE

CWE-400

Assigner

cisco

References

URL

Tags

https://tools.cisco.com/security/center/content/C…

vendor-advisoryx_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco IOS XR Software	Affected: n/a

Show details on NVD website

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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