Main Vulnerability Database SB2023101737

SB2023101737 - Denial of service in Junos OS and Junos OS Evolved rpd

Published: October 17, 2023

Security Bulletin ID SB2023101737

CSH Severity

Medium

Patch available

YES

Number of vulnerabilities 1

Exploitation vector Adjecent network

Highest impact Denial of service

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 1 vulnerability.

1) Improper validation of syntactic correctness of input (CVE-ID: CVE-2023-44204)

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

CVSSv4: CVSS:4.0/AV:A/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 in routing protocol daemon (rpd) when a malformed BGP UPDATE packet is received over an established BGP session. A remote non-authenticated attacker can perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

https://supportportal.juniper.net/s/article/2023-10-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-The-rpd-will-crash-upon-receiving-a-malformed-BGP-UPDATE-message-CVE-2023-44204