Vulnerability identifier: #VU82507

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22216

CWE-ID: CWE-200

Exploitation vector: Local network

Exploit availability: No

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

Vendor: Juniper Networks, Inc.

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

An Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the PFE of Juniper Networks Junos OS on PTX Series and QFX10k Series allows an adjacent unauthenticated attacker to gain access to sensitive information.

 PTX1000 and PTX10000 Series, and QFX10000 Series and PTX5000 Series devices sometimes do not reliably pad Ethernet packets, and thus some packets can contain fragments of system memory or data from previous packets.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 20.4 - 20.4R3-S3, 18.4 - 18.4R3-S10, 18.4R1-S5, 18.4R2-S3, 21.2R1, 20.3 - 20.3R3-S1, 19.2 - 19.2R1-S7, 19.2R1-S4, 21.1 - 21.1R2, 19.1 - 19.1R2-S2, 19.1R1-S4, 20.2 - 20.2R3-S2, 19.4 - 19.4R2-S4, 19.4R1 - 19.4R1-S4, 19.3 - 19.3R3-S3, 19.3R1-S1, 19.3R2 - 19.3R2-S7, 20.1 - 20.1R3-S1

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External links
http://supportportal.juniper.net/s/article/2022-07-Security-Bulletin-Junos-OS-PTX-Series-and-QFX10000-Series-Etherleak-memory-disclosure-in-Ethernet-padding-data-CVE-2022-22216

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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 local network (LAN).

Is there known malware, which exploits this vulnerability?

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