#VU82896 Out-of-bounds read in frr - CVE-2022-43681

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Main Vulnerability Database Vulnerabilities #VU82896

#VU82896 Out-of-bounds read in frr - CVE-2022-43681

Published: November 7, 2023


Vulnerability identifier: #VU82896
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-2022-43681
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
frr
Software vendor:
frrouting.org

Description

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

The vulnerability exists due to a boundary condition in the BGP daemon. A remote attacker can send a malformed BGP OPEN message that ends with the option length octet (or the option length word, in case of an extended OPEN message), trigger an out-of-bounds read error and crash the daemon.


Remediation

Install updates from vendor's website.

External links