3.3

CVE-2021-31362

Junos OS and Junos OS Evolved: An IS-IS adjacency might be taken down if a bad hello PDU is received for an existing adjacency causing a DoS

A Protection Mechanism Failure vulnerability in RPD (routing protocol daemon) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause established IS-IS adjacencies to go down by sending a spoofed hello PDU leading to a Denial of Service (DoS) condition. Continued receipted of these spoofed PDUs will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS All versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R3-S3; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R3; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R2. Juniper Networks Junos OS Evolved All versions prior to 20.4R2-EVO; 21.1 versions prior to 21.1R2-EVO.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Juniper ≫ Junos Version <= 18.1
Juniper ≫ Junos Version 18.2 Update -
Juniper ≫ Junos Version 18.2 Update r1
Juniper ≫ Junos Version 18.2 Update r1-s2
Juniper ≫ Junos Version 18.2 Update r1-s3
Juniper ≫ Junos Version 18.2 Update r1-s4
Juniper ≫ Junos Version 18.2 Update r1-s5
Juniper ≫ Junos Version 18.2 Update r2
Juniper ≫ Junos Version 18.2 Update r2-s1
Juniper ≫ Junos Version 18.2 Update r2-s2
Juniper ≫ Junos Version 18.2 Update r2-s3
Juniper ≫ Junos Version 18.2 Update r2-s4
Juniper ≫ Junos Version 18.2 Update r2-s5
Juniper ≫ Junos Version 18.2 Update r2-s6
Juniper ≫ Junos Version 18.2 Update r2-s7
Juniper ≫ Junos Version 18.2 Update r3
Juniper ≫ Junos Version 18.2 Update r3-s1
Juniper ≫ Junos Version 18.2 Update r3-s2
Juniper ≫ Junos Version 18.2 Update r3-s3
Juniper ≫ Junos Version 18.2 Update r3-s4
Juniper ≫ Junos Version 18.2 Update r3-s5
Juniper ≫ Junos Version 18.2 Update r3-s6
Juniper ≫ Junos Version 18.2 Update r3-s7
Juniper ≫ Junos Version 18.3 Update -
Juniper ≫ Junos Version 18.3 Update r1
Juniper ≫ Junos Version 18.3 Update r1-s1
Juniper ≫ Junos Version 18.3 Update r1-s2
Juniper ≫ Junos Version 18.3 Update r1-s3
Juniper ≫ Junos Version 18.3 Update r1-s4
Juniper ≫ Junos Version 18.3 Update r1-s5
Juniper ≫ Junos Version 18.3 Update r1-s6
Juniper ≫ Junos Version 18.3 Update r2
Juniper ≫ Junos Version 18.3 Update r2-s1
Juniper ≫ Junos Version 18.3 Update r2-s2
Juniper ≫ Junos Version 18.3 Update r2-s3
Juniper ≫ Junos Version 18.3 Update r2-s4
Juniper ≫ Junos Version 18.3 Update r3
Juniper ≫ Junos Version 18.3 Update r3-s1
Juniper ≫ Junos Version 18.3 Update r3-s2
Juniper ≫ Junos Version 18.3 Update r3-s3
Juniper ≫ Junos Version 18.3 Update r3-s4
Juniper ≫ Junos Version 18.4 Update -
Juniper ≫ Junos Version 18.4 Update r1
Juniper ≫ Junos Version 18.4 Update r1-s1
Juniper ≫ Junos Version 18.4 Update r1-s2
Juniper ≫ Junos Version 18.4 Update r1-s3
Juniper ≫ Junos Version 18.4 Update r1-s4
Juniper ≫ Junos Version 18.4 Update r1-s5
Juniper ≫ Junos Version 18.4 Update r1-s6
Juniper ≫ Junos Version 18.4 Update r1-s7
Juniper ≫ Junos Version 18.4 Update r2
Juniper ≫ Junos Version 18.4 Update r2-s1
Juniper ≫ Junos Version 18.4 Update r2-s2
Juniper ≫ Junos Version 18.4 Update r2-s3
Juniper ≫ Junos Version 18.4 Update r2-s4
Juniper ≫ Junos Version 18.4 Update r2-s5
Juniper ≫ Junos Version 18.4 Update r2-s6
Juniper ≫ Junos Version 18.4 Update r2-s7
Juniper ≫ Junos Version 18.4 Update r2-s8
Juniper ≫ Junos Version 18.4 Update r3
Juniper ≫ Junos Version 18.4 Update r3-s1
Juniper ≫ Junos Version 18.4 Update r3-s2
Juniper ≫ Junos Version 18.4 Update r3-s3
Juniper ≫ Junos Version 18.4 Update r3-s4
Juniper ≫ Junos Version 18.4 Update r3-s5
Juniper ≫ Junos Version 18.4 Update r3-s6
Juniper ≫ Junos Version 18.4 Update r3-s7
Juniper ≫ Junos Version 18.4 Update r3-s8
Juniper ≫ Junos Version 19.1 Update -
Juniper ≫ Junos Version 19.1 Update r1
Juniper ≫ Junos Version 19.1 Update r1-s1
Juniper ≫ Junos Version 19.1 Update r1-s2
Juniper ≫ Junos Version 19.1 Update r1-s3
Juniper ≫ Junos Version 19.1 Update r1-s4
Juniper ≫ Junos Version 19.1 Update r1-s5
Juniper ≫ Junos Version 19.1 Update r1-s6
Juniper ≫ Junos Version 19.1 Update r2
Juniper ≫ Junos Version 19.1 Update r2-s1
Juniper ≫ Junos Version 19.1 Update r2-s2
Juniper ≫ Junos Version 19.1 Update r3
Juniper ≫ Junos Version 19.1 Update r3-s1
Juniper ≫ Junos Version 19.1 Update r3-s2
Juniper ≫ Junos Version 19.1 Update r3-s3
Juniper ≫ Junos Version 19.1 Update r3-s4
Juniper ≫ Junos Version 19.1 Update r3-s5
Juniper ≫ Junos Version 19.1 Update r3-s6
Juniper ≫ Junos Version 19.2 Update -
Juniper ≫ Junos Version 19.2 Update r1
Juniper ≫ Junos Version 19.2 Update r1-s1
Juniper ≫ Junos Version 19.2 Update r1-s2
Juniper ≫ Junos Version 19.2 Update r1-s3
Juniper ≫ Junos Version 19.2 Update r1-s4
Juniper ≫ Junos Version 19.2 Update r1-s5
Juniper ≫ Junos Version 19.2 Update r1-s6
Juniper ≫ Junos Version 19.2 Update r2
Juniper ≫ Junos Version 19.2 Update r2-s1
Juniper ≫ Junos Version 19.2 Update r3
Juniper ≫ Junos Version 19.2 Update r3-s1
Juniper ≫ Junos Version 19.2 Update r3-s2
Juniper ≫ Junos Version 19.3 Update -
Juniper ≫ Junos Version 19.3 Update r1
Juniper ≫ Junos Version 19.3 Update r1-s1
Juniper ≫ Junos Version 19.3 Update r2
Juniper ≫ Junos Version 19.3 Update r2-s1
Juniper ≫ Junos Version 19.3 Update r2-s2
Juniper ≫ Junos Version 19.3 Update r2-s3
Juniper ≫ Junos Version 19.3 Update r2-s4
Juniper ≫ Junos Version 19.3 Update r2-s5
Juniper ≫ Junos Version 19.3 Update r3
Juniper ≫ Junos Version 19.3 Update r3-s1
Juniper ≫ Junos Version 19.4 Update r1
Juniper ≫ Junos Version 19.4 Update r1-s1
Juniper ≫ Junos Version 19.4 Update r1-s2
Juniper ≫ Junos Version 19.4 Update r1-s3
Juniper ≫ Junos Version 19.4 Update r1-s4
Juniper ≫ Junos Version 19.4 Update r2
Juniper ≫ Junos Version 19.4 Update r2-s1
Juniper ≫ Junos Version 19.4 Update r2-s2
Juniper ≫ Junos Version 19.4 Update r2-s3
Juniper ≫ Junos Version 19.4 Update r2-s4
Juniper ≫ Junos Version 19.4 Update r3
Juniper ≫ Junos Version 19.4 Update r3-s1
Juniper ≫ Junos Version 19.4 Update r3-s2
Juniper ≫ Junos Version 20.1 Update r1
Juniper ≫ Junos Version 20.1 Update r1-s1
Juniper ≫ Junos Version 20.1 Update r1-s2
Juniper ≫ Junos Version 20.1 Update r1-s3
Juniper ≫ Junos Version 20.1 Update r1-s4
Juniper ≫ Junos Version 20.1 Update r2
Juniper ≫ Junos Version 20.1 Update r2-s1
Juniper ≫ Junos Version 20.1 Update r2-s2
Juniper ≫ Junos Version 20.2 Update r1
Juniper ≫ Junos Version 20.2 Update r1-s1
Juniper ≫ Junos Version 20.2 Update r1-s2
Juniper ≫ Junos Version 20.2 Update r1-s3
Juniper ≫ Junos Version 20.2 Update r2
Juniper ≫ Junos Version 20.2 Update r2-s1
Juniper ≫ Junos Version 20.2 Update r2-s2
Juniper ≫ Junos Version 20.2 Update r2-s3
Juniper ≫ Junos Version 20.3 Update r1
Juniper ≫ Junos Version 20.3 Update r1-s1
Juniper ≫ Junos Version 20.3 Update r2
Juniper ≫ Junos Version 20.3 Update r2-s1
Juniper ≫ Junos Version 20.4 Update r1
Juniper ≫ Junos Version 20.4 Update r1-s1
Juniper ≫ Junos Os Evolved Version <= 20.3
Juniper ≫ Junos Os Evolved Version 20.4 Update r1
Juniper ≫ Junos Os Evolved Version 20.4 Update r1-s1
Juniper ≫ Junos Os Evolved Version 20.4 Update r1-s2
Juniper ≫ Junos Os Evolved Version 21.1 Update -
Juniper ≫ Junos Os Evolved Version 21.1 Update r1
Juniper ≫ Junos Os Evolved Version 21.1 Update r1-s1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.42% 0.35
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 3.3 6.5 2.9
AV:A/AC:L/Au:N/C:N/I:N/A:P
Juniper 6.5 2.8 3.6
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-693 Protection Mechanism Failure

The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

https://kb.juniper.net/JSA11224
Vendor Advisory