CVE-2022-22197

Junos OS and Junos OS Evolved: An rpd core will be observed with proxy BGP route-target filtering enabled and certain route add and delete event happening

Description

An Operation on a Resource after Expiration or Release vulnerability in the Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker with an established BGP session to cause a Denial of Service (DoS). This issue occurs when proxy-generate route-target filtering is enabled, and certain proxy-route add and delete events are happening. This issue affects: Juniper Networks Junos OS All versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S4; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S8, 18.4R3-S6; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S1; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2; 20.3 versions prior to 20.3R1-S2, 20.3R2. Juniper Networks Junos OS Evolved All versions prior to 20.1R3-EVO; 20.2 versions prior to 20.2R3-EVO; 20.3 versions prior to 20.3R2-EVO.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: Junos OS: 17.3R3-S11, 17.4R2-S13, 17.4R3-S4, 18.3R3-S4, 18.4R1-S8, 18.4R2-S8, 18.4R3-S6, 19.1R3-S4, 19.2R1-S6, 19.2R3-S2, 19.3R2-S6, 19.3R3-S1, 19.4R1-S4, 19.4R2-S4, 19.4R3, 20.1R2, 20.2R2, 20.3R1-S2, 20.3R2, 20.4R1, and all subsequent releases; Junos OS Evolved: 20.1R3-EVO, 20.2R3-EVO, 20.3R2-EVO, 20.4R1-EVO, and all subsequent releases.

Workaround:

  • There are no viable workarounds for this issue.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.79% Top 30%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Affected: Juniper Networks Junos OS Evolved
Published at:
Updated at:

References

Link Tags
https://kb.juniper.net/JSA69511 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-22197?
CVE-2022-22197 has been scored as a high severity vulnerability.
How to fix CVE-2022-22197?
To fix CVE-2022-22197: The following software releases have been updated to resolve this specific issue: Junos OS: 17.3R3-S11, 17.4R2-S13, 17.4R3-S4, 18.3R3-S4, 18.4R1-S8, 18.4R2-S8, 18.4R3-S6, 19.1R3-S4, 19.2R1-S6, 19.2R3-S2, 19.3R2-S6, 19.3R3-S1, 19.4R1-S4, 19.4R2-S4, 19.4R3, 20.1R2, 20.2R2, 20.3R1-S2, 20.3R2, 20.4R1, and all subsequent releases; Junos OS Evolved: 20.1R3-EVO, 20.2R3-EVO, 20.3R2-EVO, 20.4R1-EVO, and all subsequent releases.
Is CVE-2022-22197 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-22197 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-22197?
CVE-2022-22197 affects Juniper Networks Junos OS, Juniper Networks Junos OS Evolved.
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