CVE Catalog

CVE-2016-2854

High
Published: Translated: NVD NIST

Summary

The aufs module for the Linux kernel 3.x and 4.x does not properly maintain POSIX ACL xattr data, allowing local users to gain privileges by leveraging a group-writable setgid directory.

Risk Assessment

Local users may gain unauthorized privileges, posing a risk of privilege escalation in the system.

Recommendation

It is recommended to update the Linux kernel to a version that fixes this vulnerability and to restrict access to setgid directories.

Related vulnerabilities

Original NVD description (English source)

The aufs module for the Linux kernel 3.x and 4.x does not properly maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a group-writable setgid directory.

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