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CVE-2021-0208

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CVE-2021-0208

Published: Jan 15, 2021

Modified: Sep 16, 2024

PUBLISHED

CVSS v3.1

8.8

HIGH

Description

An improper input validation vulnerability in the Routing Protocol Daemon (RPD) service of Juniper Networks Junos OS allows an attacker to send a malformed RSVP packet when bidirectional LSPs are in use, which when received by an egress router crashes the RPD causing a Denial of Service (DoS) condition. Continued receipt of the packet will sustain the Denial of Service. This issue affects: Juniper Networks Junos OS: All versions prior to 17.3R3-S10 except 15.1X49-D240 for SRX series; 17.4 versions prior to 17.4R3-S2; 18.1 versions prior to 18.1R3-S10; 18.2 versions prior to 18.2R2-S7, 18.2R3-S4; 18.3 versions prior to 18.3R3-S2; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S2; 19.1 versions prior to 19.1R1-S5, 19.1R3-S3; 19.2 versions prior to 19.2R3; 19.3 versions prior to 19.3R2-S5, 19.3R3; 19.4 versions prior to 19.4R2-S2, 19.4R3-S1; 20.1 versions prior to 20.1R1-S4, 20.1R2; 15.1X49 versions prior to 15.1X49-D240 on SRX Series. Juniper Networks Junos OS Evolved: 19.3 versions prior to 19.3R2-S5-EVO; 19.4 versions prior to 19.4R2-S2-EVO; 20.1 versions prior to 20.1R1-S4-EVO.

VendorProductVersions

Juniper Networks

Junos OS

affected
unspecified - < 17.3R3-S10
affected
17.4 - < 17.4R3-S2
affected
18.1 - < 18.1R3-S10
affected
18.2 - < 18.2R2-S7, 18.2R3-S4
affected
18.3 - < 18.3R3-S2

+6 more versions

Juniper Networks

Junos OS

affected
15.1X49 - < 15.1X49-D240

Juniper Networks

Junos OS Evolved

affected
19.3 - < 19.3R2-S5-EVO
affected
19.4 - < 19.4R2-S2-EVO
affected
20.1 - < 20.1R1-S4-EVO

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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