Buffer overflow in Juniper Junos
CVE-2024-30398
An Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When a high amount of specific traffic is received on a SRX4600 device, due to an error in internal packet handling, a consistent rise in CPU memory utilization occurs. This results in packet drops in the traffic and eventually the PFE crashes. A manual reboot of the PFE will be required to restore the device to original state. This issue affects Junos OS: * 21.2 before 21.2R3-S7, * 21.4 before 21.4R3-S6, * 22.1 before 22.1R3-S5, * 22.2 before 22.2R3-S3, * 22.3 before 22.3R3-S2, * 22.4 before 22.4R3, * 23.2 before 23.2R1-S2, 23.2R2.
Vulnerability class: Buffer Overflow
EPSS: 0.006 (45.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Juniper Junos — versions 21.2, 21.4, 22.1
- Juniper Srx4600
- Juniper Networks Junos Os — versions 21.2, 21.4, 22.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- sirt@juniper.net (vendor-advisory, Vendor Advisory)
- sirt@juniper.net (technical-description, Issue Tracking)
Frequently asked questions
- What is CVE-2024-30398?
- CVE-2024-30398 is a high-severity vulnerability in Juniper Junos, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2024-04-12.
- How severe is CVE-2024-30398?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2024-30398 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.