CVE-2023-44197

Junos OS and Junos OS Evolved: An rpd crash may occur when BGP is processing newly learned routes

State: Published
Severity: 7.5 High
Published: Oct 12, 2023
Updated: Sep 19, 2024
Reserved: Sep 26, 2023

Description

An Out-of-Bounds Write vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).

On all Junos OS and Junos OS Evolved devices an rpd crash and restart can occur while processing BGP route updates received over an established BGP session. This specific issue is observed for BGP routes learned via a peer which is configured with a BGP import policy that has hundreds of terms matching IPv4 and/or IPv6 prefixes.

This issue affects Juniper Networks Junos OS:

* All versions prior to 20.4R3-S8; * 21.1 version 21.1R1 and later versions; * 21.2 versions prior to 21.2R3-S2; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R2-S1, 21.4R3-S5.

This issue affects Juniper Networks Junos OS Evolved:

* All versions prior to 20.4R3-S8-EVO; * 21.1-EVO version 21.1R1-EVO and later versions; * 21.2-EVO versions prior to 21.2R3-S2-EVO; * 21.3-EVO version 21.3R1-EVO and later versions; * 21.4-EVO versions prior to 21.4R2-S1-EVO, 21.4R3-S5-EVO.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	juniper

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
Junos OSJuniper Networks	before 20.4R3-S8Affected 21.1R1 to before 21.1*Affected 21.2 to before 21.2R3-S2Affected 21.3 to before 21.3R3-S5Affected 21.4 to before 21.4R2-S1, 21.4R3-S5Affected
Junos OS EvolvedJuniper Networks	before 20.4R3-S8-EVOAffected 21.1R1-EVO to before 21.1-EVOAffected 21.2-EVO to before 21.2R3-S2-EVOAffected 21.3R1-EVO to before 21.3-EVOAffected 21.4-EVO to before 21.4R2-S1-EVO, 21.4R3-S5-EVOAffected

References

https://supportportal.juniper.net/JSA73163vendor-advisory

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