Main Vulnerability Database Vulnerabilities #VU92374

#VU92374 Integer underflow in Linux kernel - CVE-2021-47588

Published: June 20, 2024 / Updated: May 13, 2025

Vulnerability identifier: #VU92374

Vulnerability risk: Low

CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2021-47588

CWE-ID: CWE-191

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
Linux kernel

Software vendor:
Linux Foundation

Description

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to integer underflow within the sit_init_net() function in net/ipv6/sit.c. A local user can execute arbitrary code.

Install update from vendor's website.