Out-of-bounds write in Juniper Junos OS and Junos OS Evolved - CVE-2021-31354

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Main Vulnerability Database Vulnerabilities #VU57437

Out-of-bounds write in Juniper Junos OS and Junos OS Evolved - CVE-2021-31354

Published: October 19, 2021


Vulnerability identifier: #VU57437
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-31354
CWE-ID: CWE-787
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vulnerable software:
Juniper Junos OS
Junos OS Evolved
Software vendor:
Juniper Networks, Inc.

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error in the handling of responses by a Juniper Agile License (JAL) Client. A remote attacker on the local network can trigger out-of-bounds write and execute arbitrary code on the target system.


Remediation

Install updates from vendor's website.

External links