A flaw was found in the Netfilter subsystem in the Linux kernel. The xt_u32 module did not validate the fields in the xt_u32 structure. This flaw allows a local privileged attacker to trigger an out-of-bounds read by setting the size fields with a value beyond the array boundaries, leading to a crash or information disclosure.
:information_source: This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.
CVE-2023-39192 - Medium Severity Vulnerability
Vulnerable Library - linuxlinux-4.6
The Linux Kernel
Library home page: https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/?wsslib=linux
Found in HEAD commit: 514923fc028ceedbe42349f6393caeb772d4f20f
Found in base branch: master
Vulnerable Source Files (3)
/net/netfilter/xt_u32.c /net/netfilter/xt_u32.c /net/netfilter/xt_u32.c
Vulnerability Details
A flaw was found in the Netfilter subsystem in the Linux kernel. The xt_u32 module did not validate the fields in the xt_u32 structure. This flaw allows a local privileged attacker to trigger an out-of-bounds read by setting the size fields with a value beyond the array boundaries, leading to a crash or information disclosure.
Publish Date: 2023-10-09
URL: CVE-2023-39192
CVSS 3 Score Details (6.0)
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: Low - Privileges Required: High - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://www.linuxkernelcves.com/cves/CVE-2023-39192
Release Date: 2023-10-09
Fix Resolution: v4.14.326,v4.19.295,v5.4.257,v5.10.195,v5.15.132,v6.1.53,v6.4.16,v6.5.3
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