SB2024011077 - Improper validation of syntactic correctness of input in Juniper Junos OS

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Main Vulnerability Database SB2024011077

SB2024011077 - Improper validation of syntactic correctness of input in Juniper Junos OS

Published: January 10, 2024

Security Bulletin ID SB2024011077
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-2024-21616)

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 Packet Forwarding Engine (PFE). A remote non-authenticated attacker can cause Denial of Service (DoS).

On all Junos OS MX Series and SRX Series platforms, when SIP ALG is enabled, and a specific SIP packet is received and processed, NAT IP allocation fails for genuine traffic, which causes Denial of Service (DoS).

Continuous receipt of this specific SIP ALG packet will cause a sustained DoS condition.


Remediation

Install update from vendor's website.

References