Incorrect comparison in Juniper Junos OS



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-22203
CWE-ID CWE-697
Exploitation vector Local network
Public exploit N/A
Vulnerable software
 Juniper Junos OS
Operating systems & Components / Operating system

Vendor Juniper Networks, Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Incorrect comparison

EUVDB-ID: #VU82502

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-22203

CWE-ID: CWE-697 - Incorrect Comparison

Exploit availability: No

Description

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

The vulnerability exists due to incorrect comparison error in PFE. A remote non-authenticated attacker can cause a Denial of Service (DoS).

 On QFX5000 Series, and EX4600 and EX4650 platforms, the fxpc process will crash followed by the FPC reboot upon receipt of a specific hostbound packet.

Continued receipt of these specific packets will create a sustained Denial of Service (DoS) condition.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 19.4R1-S1 - 19.4R3

CPE2.3 External links

https://supportportal.juniper.net/s/article/2022-07-Security-Bulletin-Junos-OS-EX4600-Series-and-QFX5000-Series-Receipt-of-specific-traffic-will-lead-to-an-fxpc-process-crash-followed-by-an-FPC-reboot-CVE-2022-22203


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.



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