Juniper Junos OS NSR cleanup

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Juniper Junos OS. Affected is an unknown function of the component NSR. The manipulation results in cleanup. This vulnerability is cataloged as CVE-2024-21617. The attack must originate from the local network. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Juniper Junos OS (Router Operating System) (affected version unknown). Affected is an unknown functionality of the component NSR. The manipulation with an unknown input leads to a cleanup vulnerability. CWE is classifying the issue as CWE-459. The product does not properly "clean up" and remove temporary or supporting resources after they have been used. This is going to have an impact on availability. CVE summarizes:

An Incomplete Cleanup vulnerability in Nonstop active routing (NSR) component of Juniper Networks Junos OS allows an adjacent, unauthenticated attacker to cause memory leak leading to Denial of Service (DoS). On all Junos OS platforms, when NSR is enabled, a BGP flap will cause memory leak. A manual reboot of the system will restore the services. The memory usage can be monitored using the below commands. user@host> show chassis routing-engine no-forwarding user@host> show system memory | no-more This issue affects: Juniper Networks Junos OS * 21.2 versions earlier than 21.2R3-S5; * 21.3 versions earlier than 21.3R3-S4; * 21.4 versions earlier than 21.4R3-S4; * 22.1 versions earlier than 22.1R3-S2; * 22.2 versions earlier than 22.2R3-S2; * 22.3 versions earlier than 22.3R2-S1, 22.3R3; * 22.4 versions earlier than 22.4R1-S2, 22.4R2. This issue does not affect Junos OS versions earlier than 20.4R3-S7.

The weakness was shared 01/12/2024 as JSA75758. The advisory is shared for download at supportportal.juniper.net. This vulnerability is traded as CVE-2024-21617 since 12/27/2023. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (Juniper Networks, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cleanup
CWE: CWE-459
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/27/2023 🔍
01/12/2024 +16 days 🔍
01/12/2024 +0 days 🔍
01/12/2024 +0 days 🔍

Sourcesinfo

Vendor: juniper.net

Advisory: JSA75758
Status: Confirmed

CVE: CVE-2024-21617 (🔍)
GCVE (CVE): GCVE-0-2024-21617
GCVE (VulDB): GCVE-100-250524

Entryinfo

Created: 01/12/2024 07:35
Changes: 01/12/2024 07:35 (50)
Complete: 🔍
Cache ID: 216::103

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