HIGH✓ PATCH🇬🇧 English

CVE-2023-20187

CVSS 8.6v3.1pub. 2023-09-27upd. 2024-11-21

A vulnerability in the Multicast Leaf Recycle Elimination (mLRE) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to incorrect handling of certain IPv6 multicast packets when they are fanned out more than seven times on an affected device. An attacker could exploit this vulnerability by sending a specific IPv6 multicast or IPv6 multicast VPN (MVPNv6) packet through the affected device. A successful exploit could allow the attacker to cause a reload of the affected device, resulting in a DoS condition.

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

  • Cisco IOS XE

    OS
    Cisco
    16.2.116.2.216.3.116.3.1016.3.1116.3.1a16.3.216.3.316.3.416.3.516.3.616.3.716.3.816.3.916.4.1+ 85 więcej
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PATCH DOSTĘPNY
Aktualizacja od producenta gotowa. Wdrożenie w ramach standardowego cyklu.
Tagi
DoSVPN
CWE
Referencje

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