High severity · published Jul 11, 2024
CVE-2024-39548
Junos OS Evolved: Receipt of specific packets in the aftmand process will lead to a memory leak
7.5
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JO
Junos OS Evolved · Juniper Networks
before 21.2R3-S8-EVO; 21.3 before 21.3R3-S5-EVO; 21.4 before 21.4R3-S5-EVO; 22.1 before 22.1R3-S4-EVO; 22.2 before 22.2R3-S4; 22.3 before 22.3R3-S3-EVO; +2 more · source: vendor, NVD, CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-39548
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-39548
Vendor Advisory
https://supportportal.juniper.net/JSA83010
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