Heap-based buffer overflow in Juniper Junos OS - CVE-2022-22188

Detailed vulnerability description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

An Uncontrolled Memory Allocation vulnerability leading to a Heap-based Buffer Overflow in the packet forwarding engine (PFE) of Juniper Networks Junos OS allows a network-based unauthenticated attacker to flood the device with traffic leading to a Denial of Service (DoS). The device must be configured with storm control profiling limiting the number of unknown broadcast, multicast, or unicast traffic to be vulnerable to this issue.

How to mitigate CVE-2022-22188

Sources

• https://supportportal.juniper.net/s/article/2022-04-Security-Bulletin-Junos-OS-QFX5100-QFX5110-QFX5120-QFX5200-QFX5210-EX4600-EX4650-Series-When-storm-control-profiling-is-enabled-and-a-device-is-under-an-active-storm-a-Heap-based-Buffer-Overflow-in-the-PFE-will-cause-a-device-hang-CVE-2022-22188