CVE Catalog

CVE-2023-3812

HighCVSS 7.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.34%

26th percentile - higher than 26% of all known CVEs

Summary

An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality. This allows a local user to generate a malicious networking packet, potentially leading to system crashes or privilege escalation.

Risk Assessment

This flaw poses a risk of system crashes and potential privilege escalation by local users, which could lead to serious security breaches.

Recommendation

It is recommended to update the Linux kernel to the latest version to mitigate this vulnerability and to monitor the system for unauthorized activities.

Related vulnerabilities

Original NVD description (English source)

An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS