QID 44197

QID 44197: Juniper Network Operating System (Junos OS) Denial of Service (DoS) Vulnerability (JSA75759)

Juniper Junos is the network operating system used in Juniper Networks hardware systems.

An Access of Memory Location After End of Buffer vulnerability in the Layer-2 Control Protocols Daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause Denial of Service (DoS).

Note: This vulnerability is only exploitable on interfaces with LLDP enabled.
[protocols lldp interface]

This issue affects versions of Junos OS:
from 21.4 before 21.4R3-S4
from 22.1 before 22.1R3-S4
from 22.2 before 22.2R3-S2
from 22.3 before 22.3R2-S2, 22.3R3-S1
from 22.4 before 22.4R3
from 23.2 before 23.2R2

QID detection logic: (Authenticated)
It checks for vulnerable Junos OS version.

QID detection logic: (Unauthenticated)
This QID checks SNMP banner for vulnerable version of JunOS.

Successful exploitation of this vulnerability allows an adjacent, unauthenticated attacker to cause Denial of Service (DoS).

CVSS V3 rated as High - 6.5 severity.

CVSS V2 rated as Medium - 3.3 severity.

Solution

Vendor has released patch addressing the vulnerabilities, for more information please refer JSA75759

Vendor References

JSA75759 - supportportal.juniper.net/JSA75759

CVEs related to QID 44197

CVE-2024-21618 |

Software Advisories

Advisory ID	Software	Component	Link
JSA75759			supportportal.juniper.net/JSA75759

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