CVE-2023-28980

Junos OS and Junos OS Evolved: In a BGP rib sharding scenario an rpd crash will happen shortly after a specific CLI command is issued

MEDIUM

5.5

CVSS Score

Published: April 17, 2023 at 12:00 AM UTC

Updated: June 17, 2026 at 05:49 AM UTC

3 products affected across 2 vendorsJunosJunos OS EvolvedJunos OS Evolved

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

A Use After Free vulnerability in the routing protocol daemon of Juniper Networks Junos OS and Junos OS Evolved allows a locally authenticated attacker with low privileges to cause Denial of Service (DoS). In a rib sharding scenario the rpd process will crash shortly after specific CLI command is issued. This issue is more likely to occur in a scenario with high route scale (>1M routes). This issue affects: Juniper Networks Junos OS * 20.2 version 20.2R3-S5 and later versions prior to 20.2R3-S6; * 20.3 version 20.3R3-S2 and later versions prior to 20.3R3-S5; * 20.4 version 20.4R3-S1 and later versions prior to 20.4R3-S4 * 21.1 version 21.1R3 and later versions prior to 21.1R3-S3; * 21.2 version 21.2R1-S2, 21.2R2-S1 and later versions prior to 21.2R3-S2; * 21.3 version 21.3R2 and later versions prior to 21.3R3; * 21.4 versions prior to 21.4R2-S1, 21.4R3; * 22.1 versions prior to 22.1R2. Juniper Networks Junos OS Evolved * 20.4-EVO version 20.4R3-S1-EVO and later versions prior to 20.4R3-S6-EVO; * 21.2-EVO version 21.2R1-S2-EVO and later versions prior to 21.2R3-S4-EVO; * 21.3-EVO version 21.3R2-EVO and later versions prior to 21.3R3-S1-EVO; * 21.4-EVO versions prior to 21.4R2-S1-EVO, 21.4R3-EVO; * 22.1-EVO versions prior to 22.1R2-EVO.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Junos · Juniper Networks

95%

20.2R3-S5 ≤ v < 20.2R3-S620.3R3-S2 ≤ v < 20.3R3-S520.4R3-S1 ≤ v < 20.4R3-S421.1R3 ≤ v < 21.1R3-S321.2R1-S2, 21.2R2-S1 ≤ v < 21.2R3-S221.3R2 ≤ v < 21.3R321.4R1 ≤ v < 21.4R2-S1, 21.4R322.1R1 ≤ v < 22.1R220.2 r3-s5 20.2R3-S5 20.3 r3-s2 20.3 r3-s3 20.3 r3-s4 20.3R3-S2 20.4 r3-s1 20.4 r3-s2 20.4 r3-s3 20.4R3-S1 21.1 r3 21.1 r3-s1 21.1 r3-s2 21.1R3 21.2 r1-s2 21.2 r2-s1 21.2 r2-s2 21.2 r3 21.2 r3-s1 21.2R1-S2 21.2R2-S1 21.3 r2 21.3 r2-s1 21.3 r2-s2 21.3R2 21.4 21.4 r1 21.4 r1-s1 21.4 r1-s2 21.4 r2 21.4 r3 21.4R1 22.1 r1 22.1 r1-s1 22.1 r1-s2 22.1R1

Affected range stops below 20.2R3-S6, so it looks safe — our inference, not a vendor statement

Affected range stops below 20.3R3-S5, so it looks safe — our inference, not a vendor statement

Affected range stops below 20.4R3-S4, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.1R3-S3, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.2R3-S2, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.3R3, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.4R2-S1, 21.4R3, so it looks safe — our inference, not a vendor statement

Affected range stops below 22.1R2, so it looks safe — our inference, not a vendor statement

Junos OS Evolved · Juniper Networks

60%

20.4R3-S1-EVO ≤ v < 20.4R3-S6-EVO21.2R1-S2-EVO ≤ v < 21.2R3-S4-EVO21.3R2-EVO ≤ v < 21.3R3-S1-EVO21.4R1-EVO ≤ v < 21.4R2-S1-EVO, 21.4R3-EVO22.1R1-EVO ≤ v < 22.1R2-EVO20.4R3-S1-EVO 21.2R1-S2-EVO 21.3R2-EVO 21.4R1-EVO 22.1R1-EVO

Affected range stops below 20.4R3-S6-EVO, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.2R3-S4-EVO, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.3R3-S1-EVO, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.4R2-S1-EVO, 21.4R3-EVO, so it looks safe — our inference, not a vendor statement

Affected range stops below 22.1R2-EVO, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://supportportal.juniper.net/JSA70606

References (1)

Vendor Advisory

Source: [email protected]

https://supportportal.juniper.net/JSA70606

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMjuniper

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-416

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