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Vulnerability · Published Jan 12, 2023 · Assigned by juniper

CVE-2023-22393Junos OS and Junos OS Evolved: RPD crash upon receipt of BGP route with invalid next-hop

High 7.5

In plain English

A high-severity security flaw in Junos OS from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.6%top 49.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

An Improper Check for Unusual or Exceptional Conditions vulnerability in BGP route processing of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to cause Routing Protocol Daemon (RPD) crash by sending a BGP route with invalid next-hop resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects systems without import policy configured. This issue affects: Juniper Networks Junos OS 21.1 versions prior to 21.1R3-S4; 21.2 versions prior to 21.2R3-S3; 21.3 versions prior to 21.3R3-S2; 21.4 versions prior to 21.4R2-S2, 21.4R3; 22.1 versions prior to 22.1R1-S2, 22.1R2; 22.2 versions prior to 22.2R1-S1, 22.2R2. Juniper Networks Junos OS Evolved 21.4-EVO versions prior to 21.4R2-S2-EVO, 21.4R3-EVO; 22.1-EVO versions prior to 22.1R1-S2-EVO, 22.1R2-EVO; 22.2-EVO versions prior to 22.2R1-S1-EVO, 22.2R2-EVO. This issue does not affect: Juniper Networks Junos OS versions prior to 21.1R1. Juniper Networks Junos OS Evolved versions prior to 21.3R1-EVO.

Affected products (as reported)

VendorProductVersions
Juniper Networks Junos OS 21.1 – before 21.1R3-S421.2 – before 21.2R3-S321.3 – before 21.3R3-S221.4 – before 21.4R2-S2, 21.4R322.1 – before 22.1R1-S2, 22.1R222.2 – before 22.2R1-S1, 22.2R2
Juniper Networks Junos OS Evolved 21.4-EVO – before 21.4R2-S2-EVO, 21.4R3-EVO22.1-EVO – before 22.1R1-S2-EVO, 22.1R2-EVO22.2-EVO – before 22.2R1-S1-EVO, 22.2R2-EVO

Weakness: CWE-358, CWE-754 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References