CVE-2024-30398

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.