Vulnerabilities > CVE-2023-39189 - Out-of-bounds Read vulnerability in multiple products

047910
CVSS 6.0 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
HIGH
Confidentiality impact
HIGH
Integrity impact
NONE
Availability impact
HIGH
local
low complexity
linux
redhat
fedoraproject
CWE-125
NVD
Published: 2023-10-09
Updated: 2024-11-21

Summary

A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure.

Vulnerable Configurations

Part Description Count
OS
Linux
5508
OS
Redhat
2
OS
Fedoraproject
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Overread Buffers
    An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

References