Remote denial of service in Juniper Networks Junos OS flowd



Published: 2024-01-12
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-21601
CWE-ID CWE-362
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Juniper Junos OS
Operating systems & Components / Operating system

Vendor Juniper Networks, Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Race condition

EUVDB-ID: #VU85334

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-2024-21601

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

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

The vulnerability exists due to a race condition in the Flow-processing Daemon (flowd). A remote attacker can send specially crafted TCP packets to the device and perform a denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 21.2R1 - 22.4R2

External links

http://supportportal.juniper.net/s/article/2024-01-Security-Bulletin-Junos-OS-SRX-Series-Due-to-an-error-in-processing-TCP-events-flowd-will-crash-CVE-2024-21601


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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