Denial of service in Juniper Networks Junos OS Evolved on PTX10003 and PTX10008 platforms

1) Race condition

EUVDB-ID: #VU57358

Risk: Low

CVSSv3.1: 4.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0298

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

Exploit availability: No

Description

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

The vulnerability exists due to a race condition in the "show chassis pic" command. A local user can exploit the race and cause a denial of service condition on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

PTX10008​: All versions

PTX10003: All versions

Junos OS Evolved: 20.1 - 20.2

External links

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA11212&cat=SIRT_1&actp=LIST

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.