Heap-based buffer overflow in Juniper Junos OS



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-21594
CWE-ID CWE-122
Exploitation vector Local
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 low risk vulnerability.

1) Heap-based buffer overflow

EUVDB-ID: #VU85277

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-21594

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.

The vulnerability exists due to heap-based buffer overflow error in the Network Services Daemon (NSD). A local authenticated user can cause a Denial of Service (DoS).

On an SRX 5000 Series device, when executing a specific command repeatedly, memory is corrupted, which leads to a Flow Processing Daemon (flowd) crash.

The NSD process has to be restarted to restore services.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 20.4R1 - 23.1R1-S1

CPE2.3 External links

http://supportportal.juniper.net/s/article/2024-01-Security-Bulletin-Junos-OS-SRX-5000-Series-Repeated-execution-of-a-specific-CLI-command-causes-a-flowd-crash-CVE-2024-21594


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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



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