CVE-2021-31374

Severity

75%

Complexity

39%

Confidentiality

60%

On Juniper Networks Junos OS and Junos OS Evolved devices processing a specially crafted BGP UPDATE or KEEPALIVE message can lead to a routing process daemon (RPD) crash and restart, causing a Denial of Service (DoS). Continued receipt and processing of this message will create a sustained Denial of Service (DoS) condition. This issue affects both IBGP and EBGP deployments over IPv4 or IPv6. This issue affects: Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 18.4R3-S7; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3-S1; 19.4 versions prior to 19.4R1-S4, 19.4R1-S4, 19.4R2-S3, 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2; 20.3 versions prior to 20.3R1-S1, 20.3R2. Juniper Networks Junos OS Evolved: 20.3 versions prior to 20.3R2-EVO.

CVSS 3.1 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P).

Overview

Type

Juniper

First reported 3 years ago

2021-10-19 19:15:00

Last updated 3 years ago

2021-10-25 15:49:00

Affected Software

Juniper JUNOS 17.3

17.3

Juniper JUNOS 17.3 R1-S1

17.3

Juniper Junos 17.3 R2

17.3

Juniper JUNOS 17.3 R2-S1

17.3

Juniper JUNOS 17.3R2-S2

17.3

Juniper Junos OS 17.3 R2-S3

17.3

Juniper JUNOS 17.3 R2-S4

17.3

Juniper JUNOS 17.3 R3-S1

17.3

Juniper JUNOS 17.3 R3-S2

17.3

Juniper JUNOS 17.3 R3-S3

17.3

Juniper JUNOS 17.3R3-S4

17.3

Juniper JUNOS 17.3 R3-S7

17.3

Juniper JUNOS 17.4

17.4

Juniper Junos 17.4 R1

17.4

Juniper JUNOS 17.4 R1-S1

17.4

Juniper JUNOS 17.4 R1-S2

17.4

Juniper JUNOS 17.4R1-S4

17.4

Juniper JunOS 17.4 R1-s5

17.4

Juniper JUNOS 17.4 R1-S6

17.4

Juniper JUNOS 17.4R1-S7

17.4

Juniper Junos 17.4 R2

17.4

Juniper JUNOS 17.4 R2-S1

17.4

Juniper JUNOS 17.4 R2-S10

17.4

Juniper Junos 17.4 R2-S2

17.4

Juniper JUNOS 17.4 R2-S3

17.4

Juniper JUNOS 17.4R2-S4

17.4

Juniper JUNOS 17.4 R2-S5

17.4

Juniper JUNOS 17.4 R2-S6

17.4

Juniper JUNOS 17.4 R2-S7

17.4

Juniper JUNOS 17.4 R2-S8

17.4

Juniper JUNOS 17.4 R2-S9

17.4

Juniper JUNOS 17.4 R3

17.4

Juniper JUNOS 17.4 R3-S1

17.4

Juniper JUNOS 18.1

18.1

Juniper JUNOS 18.1R2

18.1

Juniper JUNOS R2-S1

18.1

Juniper JUNOS R2-S2

18.1

Juniper JUNOS 18.1 R2-S4

18.1

Juniper JUNOS 18.1 R3

18.1

Juniper JunOS 18.1 R3-s1

18.1

Juniper JUNOS 18.1 R3-S2

18.1

Juniper JUNOS 18.1 R3-S3

18.1

Juniper JUNOS 18.1R3-S4

18.1

Juniper JUNOS 18.1 R3-S6

18.1

Juniper JUNOS 18.1 R3-S7

18.1

Juniper JUNOS 18.1 R3-S8

18.1

Juniper JUNOS 18.1 R3-S9

18.1

Juniper JUNOS 18.2

18.2

Juniper JunOS 18.2 R1-S3

18.2

Juniper JUNOS 18.2 R1-S5

18.2

Juniper JUNOS 18.2 R2-S1

18.2

Juniper JUNOS 18.2R2-S2

18.2

Juniper JUNOS 18.2R2-S3

18.2

Juniper JUNOS18.2 R2-S4

18.2

Juniper JUNOS 18.2 R2-S5

18.2

Juniper JUNOS 18.2 R2-S6

18.2

Juniper JUNOS 18.2R3

18.2

Juniper JUNOS 18.2 R3-S1

18.2

Juniper JUNOS 18.2 R3-S2

18.2

Juniper JUNOS 18.2 R3-S3

18.2

Juniper JUNOS 18.3

18.3

Juniper JUNOS 18.3 R1

18.3

Juniper JUNOS 18.3 R1-S1

18.3

Juniper JUNOS 18.3 R1-S2

18.3

Juniper JUNOS 18.3R1-S3

18.3

Juniper JUNOS 18.3 R1-S5

18.3

Juniper JUNOS 18.3 R1-S6

18.3

Juniper JUNOS 18.3 R2

18.3

Juniper JUNOS 18.3 R2-S1

18.3

Juniper JUNOS 18.3 R2-S2

18.3

Juniper JUNOS 18.3 R2-S3

18.3

Juniper JUNOS 18.3 R3

18.3

Juniper JUNOS 18.3 R3-S1

18.3

Juniper JUNOS 18.4

18.4

Juniper JunOS 18.4 R1

18.4

Juniper Junos OS 18.4 R1-S1

18.4

Juniper JUNOS 18.4R1-S2

18.4

Juniper JUNOS 18.4 R1-S5

18.4

Juniper JUNOS 18.4 R1-S6

18.4

Juniper JUNOS 18.4R2

18.4

Juniper JUNOS 18.4 R2-S1

18.4

Juniper JUNOS 18.4 R2-S2

18.4

Juniper JUNOS 18.4 R2-S3

18.4

Juniper Junos OS 19.1

19.1

Juniper Junos OS 19.1 R1

19.1

Juniper Junos OS 19.1 R1-s1

19.1

Juniper JUNOS 19.1 R1-S2

19.1

Juniper JUNOS 19.1 R1-S3

19.1

Juniper JUNOS 19.1 R1-S4

19.1

Juniper Junos OS 19.1 R2

19.1

Juniper Junos OS 19.2

19.2

Juniper Junos OS 19.2 R1

19.2

Juniper JUNOS 19.2 R1-S1

19.2

Juniper JUNOS 19.2 R1-S2

19.2

Juniper JUNOS 19.2 R1-S3

19.2

Juniper JUNOS 19.3

19.3

Juniper JUNOS 19.3 R1

19.3

Juniper JUNOS 19.3 R1-S1

19.3

Juniper JUNOS 19.3 R2

19.3

Juniper JUNOS 19.3 R2-S1

19.3

Juniper JUNOS 19.3 R2-S2

19.3

Juniper JUNOS 19.4 R1

19.4

Juniper JUNOS 19.4 R1-S1

19.4

Juniper JUNOS 20.1 R1

20.1

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