#VU81445 NULL pointer dereference in frr - CVE-2023-41909
Published: October 3, 2023
Vulnerability identifier: #VU81445
Vulnerability risk: Medium
CVSSv4.0: 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-2023-41909
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
frr
frr
Software vendor:
frrouting.org
frrouting.org
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error within the bgp_nlri_parse_flowspec() function in bgpd/bgp_flowspec.c. A remote attacker can send specially crafted data to the application and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.