Missing release of memory after effective lifetime in Junos OS - CVE-2024-47493
Published: October 11, 2024
Vulnerability identifier: #VU98410
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-47493
CWE-ID: CWE-401
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to missing release of memory after effective lifetime error in the Packet Forwarding Engine (PFE). A remote non-authenticated attacker can cause a Denial of Service (DoS).
In case of channelized Modular Interface Cards (MICs), every physical interface flap operation will leak heap memory.
Over a period of time, continuous physical interface flap operations causes local FPC to eventually run out of memory and crash.
Affected software
Junos OS
How to mitigate CVE-2024-47493
Install updates from vendor's website.
Junos OS - addressed in versions 21.2R3-S7, 21.4R3-S6, 22.1R3-S5, 22.2R3-S3, 22.3R3-S2, 22.4R3, 23.2R2, 23.4R1, 23.4R2, 24.1R1