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Rewterz Threat Alert – Lokibot IOCs
September 1, 2020
Rewterz Threat Advisory – CVE-2020-16226 – ICS: Mitsubishi Electric Multiple Products
September 1, 2020

Rewterz Threat Advisory – Update: Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerabilities

September 1, 2020

Severity

High

Analysis Summary

CVE-2020-3566, CVE-2020-3569

Multiple vulnerabilities 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.

These vulnerabilities are due to insufficient queue management for Internet Group Management Protocol (IGMP) packets. An attacker could exploit these vulnerabilities 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.

Impact

Exhaustion of process memory

Affected Vendors

Cisco

Affected Products

Cisco IOS XR Software

Remediation

Refer to Cisco advisory for the list of affected products and their respective patches.

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-dvmrp-memexh-dSmpdvfz

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