Vulnerability identifier: #VU78274

Vulnerability 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-2023-36832

CWE-ID: CWE-754

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Juniper Junos OS
Operating systems & Components / Operating system

Vendor: Juniper Networks, Inc.

Description

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

The vulnerability exists due to improper error handling in packet processing. A remote attacker can send specific packets to an Aggregated Multiservices (AMS) interface on the device, causing the packet forwarding engine (PFE) to crash, resulting in a Denial of Service (DoS).

Mitigation
Install update from vendor's website.

Vulnerable software versions

Juniper Junos OS: 20.2 - 20.2R3-S7, 22.3R1 - 22.3R2, 21.2R1 - 21.2R3-S4, 22.4R1 - 22.4R1-S1, 22.1R1 - 22.1R3-S1, 20.4 - 20.4R3-S6, 19.4 - 19.4R3-S11, 19.4R1 - 19.4R1-S4, 19.3 - 19.3R3-S7, 19.3R1-S1, 19.3R2 - 19.3R2-S7, 19.2 - 19.2R3-S6, 19.2R1-S4, 19.1 - 19.1R3-S9, 19.1R1-S4, 21.4R1 - 21.4R3-S2, 21.1 - 21.1R3-S4, 22.2R1 - 22.2R2-S2, 21.3R1 - 21.3R3-S3

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External links
http://supportportal.juniper.net/JSA71639

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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.