Vulnerability · Published Oct 18, 2022 · Assigned by juniper

CVE-2022-22238Junos OS and Junos OS Evolved: The rpd process will crash when a malformed incoming RESV message is processed

Medium 5.3

In plain English

A medium-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 0.3% (higher than 23% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 76.5% 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 the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). When an incoming RESV message corresponding to a protected LSP is malformed it causes an incorrect internal state resulting in an rpd core. This issue affects: Juniper Networks Junos OS All versions prior to 19.2R3-S6; 19.3 versions prior to 19.3R3-S6; 19.4 versions prior to 19.4R3-S8; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3-S1; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R1-S2, 21.2R3; 21.3 versions prior to 21.3R2. Juniper Networks Junos OS Evolved All versions prior to 20.2R3-S3-EVO; 20.3-EVO version 20.3R1-EVO and later versions; 20.4-EVO versions prior to 20.4R3-S1-EVO; 21.1-EVO version 21.1R1-EVO and later versions; 21.2-EVO version 21.2R1-EVO and later versions; 21.3-EVO versions prior to 21.3R2-EVO.

Affected products (as reported)

VendorProductVersions
Juniper Networks Junos OS unspecified – before 19.2R3-S619.3 – before 19.3R3-S619.4 – before 19.4R3-S820.1 – before 20.1R3-S220.2 – before 20.2R3-S320.3 – before 20.3R3-S220.4 – before 20.4R3-S121.1 – before 21.1R3
Juniper Networks Junos OS Evolved unspecified – before 20.2R3-S3-EVO20.3R1-EVO – before 20.3-EVO*20.4-EVO – before 20.4R3-S1-EVO21.1R1-EVO – before 21.1-EVO*21.2R1-EVO – before 21.2-EVO*21.3-EVO – before 21.3R2-EVO

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

References