CVE-2023-22398

Junos OS and Junos OS Evolved: RPD might crash when MPLS ping is performed on BGP LSPs

Description

An Access of Uninitialized Pointer vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a locally authenticated attacker with low privileges to cause a Denial of Service (DoS). When an MPLS ping is performed on BGP LSPs, the RPD might crash. Repeated execution of this operation will lead to a sustained DoS. This issue affects: Juniper Networks Junos OS: 15.1 versions prior to 15.1R7-S12; 19.1 versions prior to 19.1R3-S9; 19.2 versions prior to 19.2R1-S9, 19.2R3-S5; 19.3 versions prior to 19.3R3-S6; 19.4 versions prior to 19.4R2-S7, 19.4R3-S8; 20.1 versions prior to 20.1R3-S4; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S5; 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R1-S1, 21.1R2; Juniper Networks Junos OS Evolved: All versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R2-EVO.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: Junos OS: 15.1R7-S12, 19.1R3-S9, 19.2R1-S9, 19.2R3-S5, 19.3R3-S6, 19.4R2-S7, 19.4R3-S8, 20.1R3-S4, 20.2R3-S5, 20.3R3-S5, 20.4R3-S4, 21.1R1-S1, 21.1R2, 21.2R1, and all subsequent releases. Junos OS Evolved: 20.4R3-S4-EVO, 21.1R2-EVO, 21.2R1-EVO and all subsequent releases.

Workaround:

  • There are no known workarounds for this issue. To reduce the risk of exploitation of this issue, use access lists or firewall filters to limit access to only trusted networks, hosts and users.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.04%
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/JSA70181 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-22398?
CVE-2023-22398 has been scored as a medium severity vulnerability.
How to fix CVE-2023-22398?
To fix CVE-2023-22398: The following software releases have been updated to resolve this specific issue: Junos OS: 15.1R7-S12, 19.1R3-S9, 19.2R1-S9, 19.2R3-S5, 19.3R3-S6, 19.4R2-S7, 19.4R3-S8, 20.1R3-S4, 20.2R3-S5, 20.3R3-S5, 20.4R3-S4, 21.1R1-S1, 21.1R2, 21.2R1, and all subsequent releases. Junos OS Evolved: 20.4R3-S4-EVO, 21.1R2-EVO, 21.2R1-EVO and all subsequent releases.
Is CVE-2023-22398 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-22398 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-22398?
CVE-2023-22398 affects Juniper Networks Junos OS, Juniper Networks Junos OS Evolved.
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