title: Junos OS and Junos OS Evolved: Receipt of a specific genuine PIM packet causes RPD crash
description:
A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows to send specific genuine PIM packets to the device resulting in rpd to crash causing a Denial of Service (DoS).
Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
Note: This issue is not noticed when all the devices in the network are Juniper devices.
This issue affects Juniper Networks:
Junos OS:
*  All versions prior to 20.4R3-S7;
*  21.2 versions prior to 21.2R3-S5;
*  21.3 versions prior to 21.3R3-S4;
*  21.4 versions prior to 21.4R3-S4;
*  22.1 versions prior to 22.1R3-S4;
*  22.2 versions prior to 22.2R3;
*  22.3 versions prior to 22.3R3;
*  22.4 versions prior to 22.4R3.
Junos OS Evolved:
*  All versions prior to 22.3R3-EVO;
*  22.4-EVO versions prior to 22.4R3-EVO;
*  23.2-EVO versions prior to 23.2R1-EVO.
problem types: CWE-617 Reachable Assertion
affected:
{
defaultStatus: unaffected
product: Junos OS
vendor: Juniper Networks
versions:
lessThan: 20.4R3-S7, status: affected, version: 0, versionType: semver
lessThan: 21.1R3-S4, status: affected, version: 21.1, versionType: semver
lessThan: 21.2R3-S5, status: affected, version: 21.2, versionType: semver
lessThan: 21.3R3-S4, status: affected, version: 21.3, versionType: semver
lessThan: 21.4R3-S4, status: affected, version: 21.4, versionType: semver
lessThan: 22.1R3-S4, status: affected, version: 22.1, versionType: semver
lessThan: 22.2R3, status: affected, version: 22.2, versionType: semver
lessThan: 22.3R3, status: affected, version: 22.3, versionType: semver
lessThan: 22.4R3, status: affected, version: 22.4, versionType: semver
}
{
defaultStatus: unaffected
product: Junos OS Evolved
vendor: Juniper Networks
versions:
lessThan: 22.3R3-EVO, status: affected, version: 0, versionType: semver
lessThan: 22.4R3-EVO, status: affected, version: 22.4-EVO, versionType: semver
lessThan: 23.2R1-EVO, status: affected, version: 23.2-EVO, versionType: semver
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: ADJACENT_NETWORK
availabilityImpact: HIGH
baseScore: 6.5
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL
exploits: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
solutions: The following software releases have been updated to resolve this specific issue:
Junos OS: 20.4R3-S7, 21.2R3-S5, 21.3R3-S4, 21.4R3-S4, 22.1R3-S4, 22.2R3, 22.3R2-S1, 22.3R3, 22.4R2, 22.4R3, 23.2R1, and all subsequent releases.
Junos OS Evolved: 22.3R3-EVO, 22.4R3-EVO, 23.2R1-EVO, and all subsequent releases.
workarounds: There are no known workarounds for this issue.