#VU94197 Missing release of memory after effective lifetime in Juniper Junos OS and Junos OS Evolved - CVE-2024-39536
Published: July 12, 2024
Vulnerability identifier: #VU94197
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2024-39536
CWE-ID: CWE-401
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
Juniper Junos OS
Junos OS Evolved
Juniper Junos OS
Junos OS Evolved
Software vendor:
Juniper Networks, Inc.
Juniper Networks, Inc.
Description
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 Periodic Packet Management Daemon (ppmd). A remote non-authenticated attacker can cause a Denial-of-Service (DoS).
When a BFD session configured with authentication flaps, ppmd memory can leak.
Whether the leak happens depends on a race condition which is outside the attackers control.
Remediation
Install updates from vendor's website.