SB2022041358 - Heap-based buffer overflow in Junos OS PFE

Description

This security bulletin contains information about 1 security vulnerability.

1) Heap-based buffer overflow (CVE-ID: CVE-2022-22188)

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.

Remediation

Install update from vendor's website.

References

• 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