Denial of service in Juniper Networks JUNOS OS on EX2300 Series, EX3400 Series and ACX710



Published: 2021-10-14
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-31368
CWE-ID CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Juniper Junos OS
Operating systems & Components / Operating system

EX2300
Hardware solutions / Routers & switches, VoIP, GSM, etc

EX3400
Hardware solutions / Routers & switches, VoIP, GSM, etc

ACX710
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor Juniper Networks, Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU57352

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-31368

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources in the kernel. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 18.1 - 20.4R2

EX2300: All versions

EX3400: All versions

ACX710: All versions

External links

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA11230&cat=SIRT_1&actp=LIST


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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