SB2024041108 - Improper validation of syntactic correctness of input in Junos OS Evolved and Juniper Junos OS

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Main Vulnerability Database SB2024041108

SB2024041108 - Improper validation of syntactic correctness of input in Junos OS Evolved and Juniper Junos OS

Published: April 11, 2024

Security Bulletin ID SB2024041108
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper validation of syntactic correctness of input (CVE-ID: CVE-2024-21598)

CWE-ID: CWE-1286 - Improper Validation of Syntactic Correctness of Input

CVSSv4: 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


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

The vulnerability exists due to improper validation of syntactic correctness of input error in the Routing Protocol Daemon (rpd). A remote non-authenticated attacker can cause a Denial of Service (DoS).

If a BGP update is received over an established BGP session which contains a tunnel encapsulation attribute with a specifically malformed TLV, rpd will crash and restart.


Remediation

Install update from vendor's website.

References