#VU46225 Use-after-free in FreeBSD - CVE-2020-7462 

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Main Vulnerability Database Vulnerabilities #VU46225

#VU46225 Use-after-free in FreeBSD - CVE-2020-7462

Published: September 3, 2020


Vulnerability identifier: #VU46225
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-7462
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
FreeBSD
Software vendor:
FreeBSD Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error when processing IPv6 packets. A local user can send IPv6 Hop-by-Hop options over the loopback interface and trigger kernel panic.



Remediation

Install updates from vendor's website.

External links