CVE-2023-28982

Junos OS and Junos OS Evolved: In a BGP rib sharding scenario when a route is frequently updated an rpd memory leak will occur

HIGH

7.5

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

HIGH7.5

Exploit prediction

EPSS 0.6%

SSVC

No known exploit

Description

A Missing Release of Memory after Effective Lifetime vulnerability in the routing protocol daemon of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network based attacker to cause a Denial of Service (DoS). In a BGP rib sharding scenario, when an attribute of an active BGP route is updated memory will leak. As rpd memory usage increases over time the rpd process will eventually run out of memory, crash, and restart. The memory utilization can be monitored with the following CLI commands: show task memory show system processes extensive | match rpd This issue affects: Juniper Networks Junos OS 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3-S6; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R3; 21.3 versions prior to 21.3R2. Juniper Networks Junos OS Evolved 20.3-EVO version 20.3R1-EVO and later versions; 20.4-EVO versions prior to 20.4R3-S6-EVO; 21.2-EVO versions prior to 21.2R3-EVO; 21.3-EVO versions prior to 21.3R2-EVO.

Affected

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

Junos · Juniper Networks

95%

20.3 ≤ v < 20.3R3-S220.4 ≤ v < 20.4R3-S621.1 ≤ v < 21.1R321.2 ≤ v < 21.2R321.3 ≤ v < 21.3R220.3 20.3 r1 20.3 r1-s1 20.3 r1-s2 20.3 r2 20.3 r2-s1 20.3 r3 20.3 r3-s1 20.4 20.4 r1 20.4 r1-s1 20.4 r2 20.4 r2-s1 20.4 r2-s2 20.4 r3 20.4 r3-s1 20.4 r3-s2 20.4 r3-s3 20.4 r3-s4 20.4 r3-s5 21.1 21.1 r1 21.1 r1-s1 21.1 r2 21.1 r2-s1 21.1 r2-s2 21.2 21.2 r1 21.2 r1-s1 21.2 r1-s2 21.2 r2 21.2 r2-s1 21.2 r2-s2 21.3 21.3 r1 21.3 r1-s1 21.3 r1-s2

Affected range stops below 20.3R3-S2, so it looks safe — our inference, not a vendor statement

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

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

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

Affected range stops below 21.3R2, so it looks safe — our inference, not a vendor statement

Junos OS Evolved · Juniper Networks

60%

20.3R1-EVO ≤ v < 20.3-EVO*20.4-EVO ≤ v < 20.4R3-S6-EVO21.2-EVO ≤ v < 21.2R3-EVO21.3-EVO ≤ v < 21.3R2-EVO20.3R1-EVO 20.4-EVO 21.2-EVO 21.3-EVO

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

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

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

Affected range stops below 21.3R2-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/JSA70608

References (1)

Vendor Advisory

Source: [email protected]

https://supportportal.juniper.net/JSA70608

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

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

CVSS

7.5HIGHjuniper

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

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-401

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