PT-2024-3102 · Juniper Networks · Junos

Published 2024-04-10 · Updated 2024-05-16 · CVE-2024-30398

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions Junos OS versions 21.2 before 21.2R3-S7 Junos OS versions 21.4 before 21.4R3-S6 Junos OS versions 22.1 before 22.1R3-S5 Junos OS versions 22.2 before 22.2R3-S3 Junos OS versions 22.3 before 22.3R3-S2 Junos OS versions 22.4 before 22.4R3 Junos OS versions 23.2 before 23.2R1-S2, 23.2R2

Description The issue is related to an Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS. This allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS) by sending specific traffic to a SRX4600 device. The error in internal packet handling results in a consistent rise in CPU memory utilization, leading to packet drops and eventually the PFE crashes. A manual reboot of the PFE is required to restore the device to its original state.

Recommendations For Junos OS versions 21.2 before 21.2R3-S7, update to version 21.2R3-S7 or later. For Junos OS versions 21.4 before 21.4R3-S6, update to version 21.4R3-S6 or later. For Junos OS versions 22.1 before 22.1R3-S5, update to version 22.1R3-S5 or later. For Junos OS versions 22.2 before 22.2R3-S3, update to version 22.2R3-S3 or later. For Junos OS versions 22.3 before 22.3R3-S2, update to version 22.3R3-S2 or later. For Junos OS versions 22.4 before 22.4R3, update to version 22.4R3 or later. For Junos OS versions 23.2 before 23.2R1-S2, 23.2R2, update to a version that includes the fix for this issue. As a temporary workaround, consider restricting access to the vulnerable Packet Forwarding Engine (PFE) to minimize the risk of exploitation.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2024-03303

CVE-2024-30398

Affected Products

Junos

References · 6

• https://osv.dev/vulnerability/CVE-2024-30398 · Vendor Advisory
• https://supportportal.juniper.net/JSA79176 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-03303 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-30398 · Security Note
• https://first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L · Note
• https://twitter.com/VulmonFeeds/status/1778861902522704374 · Twitter Post