SB2022071357 - Allocation of resources without limits or throttling in Junos OS Evolved

Security Bulletin ID SB2022071357

CSH Severity

Medium

Patch available

YES

Number of vulnerabilities 1

Exploitation vector Remote access

Highest impact Denial of service

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 1 vulnerability.

1) Allocation of resources without limits or throttling (CVE-ID: CVE-2022-22212)

CWE-ID: CWE-770 - Allocation of Resources Without Limits or Throttling

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

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

The vulnerability exists due to allocation of resources without limits or throttling error in the Packet Forwarding Engine (PFE). A remote non-authenticated attacker can cause a Denial of Service (DoS).

On all Junos Evolved platforms hostbound protocols will be impacted by a high rate of specific hostbound traffic from ports on a PFE.

Continued receipt of this amount of traffic will create a sustained Denial of Service (DoS) condition.

Remediation

Install update from vendor's website.

References

https://supportportal.juniper.net/s/article/2022-07-Security-Bulletin-Junos-OS-Evolved-A-high-rate-of-specific-hostbound-traffic-will-cause-unexpected-hostbound-traffic-delays-or-drops-CVE-2022-22212