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Vulnerability · Published Jul 11, 2024 · Assigned by juniper

CVE-2024-39548Junos OS Evolved: Receipt of specific packets in the aftmand process will lead to a memory leak

High 7.5

In plain English

A high-severity uncontrolled resource consumption in Junos OS Evolved from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 57.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

An Uncontrolled Resource Consumption vulnerability in the aftmand process of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to consume memory resources, resulting in a Denial of Service (DoS) condition. The processes do not recover on their own and must be manually restarted. This issue affects both IPv4 and IPv6.  Changes in memory usage can be monitored using the following CLI command: user@device> show system memory node <fpc slot> | grep evo-aftmann This issue affects Junos OS Evolved:  * All versions before 21.2R3-S8-EVO,  * 21.3 versions before 21.3R3-S5-EVO,  * 21.4 versions before 21.4R3-S5-EVO,  * 22.1 versions before 22.1R3-S4-EVO,  * 22.2 versions before 22.2R3-S4-EVO, * 22.3 versions before 22.3R3-S3-EVO, * 22.4 versions before 22.4R2-S2-EVO, 22.4R3-EVO,  * 23.2 versions before 23.2R1-S1-EVO, 23.2R2-EVO.

Affected products (as reported)

VendorProductVersions
Juniper Networks Junos OS Evolved 0 – before 21.2R3-S8-EVO21.3 – before 21.3R3-S5-EVO21.4 – before 21.4R3-S5-EVO22.1 – before 22.1R3-S4-EVO22.2 – before 22.2R3-S422.3 – before 22.3R3-S3-EVO22.4 – before 22.4R2-S2-EVO, 22.4R3-EVO23.2 – before 23.2R1-S1-EVO, 23.2R2-EVO

Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References