Improper Check for Unusual or Exceptional Conditions in Juniper Junos OS and MX Series - CVE-2021-31351
Published: October 14, 2021
Vulnerability identifier: #VU57357
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/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-2021-31351
CWE-ID: CWE-754
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Juniper Networks, Inc.
Affected software:
Juniper Junos OS
MX Series
Juniper Junos OS
MX Series
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper check for unusual or exceptional conditions in packet processing on the MS-MPC/MS-MIC. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
How to mitigate CVE-2021-31351
Install updates from vendor's website.