PT-2022-3821 · Juniper Networks · Junos Evolved

Published 2022-07-13 · Updated 2022-07-30 · CVE-2022-22212

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS Evolved versions 21.2 through 21.2R3-EVO Juniper Networks Junos OS Evolved versions 21.3 through 21.3R2-EVO

Description An Allocation of Resources Without Limits or Throttling issue in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved allows an unauthenticated network-based attacker to 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.

Recommendations For Juniper Networks Junos OS Evolved versions 21.2 through 21.2R3-EVO, update to version 21.2R3-EVO or later. For Juniper Networks Junos OS Evolved versions 21.3 through 21.3R2-EVO, update to version 21.3R2-EVO or later. As a temporary workaround, consider restricting the amount of hostbound traffic from ports on a PFE to minimize the risk of exploitation.

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

BDU:2022-04619

CVE-2022-22212

Affected Products

Junos Evolved

References · 6

• https://osv.dev/vulnerability/CVE-2022-22212 · Vendor Advisory
• https://kb.juniper.net/JSA69716 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-22212 · Security Note
• https://bdu.fstec.ru/vul/2022-04619 · Security Note
• https://t.me/cvenotify/34026 · Telegram Post
• https://t.me/cibsecurity/46660 · Telegram Post