attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4, and Red Hat OpenShift Container Platform 4.22
Classified as
CWE-250 (Execution with Unnecessary Privileges)
Affected Products, Subsystems & Sectors
Vendor
Product
Affected Versions
Patch Status
Red Hat
Red Hat Enterprise Linux 10
Red Hat
Red Hat Enterprise Linux 8
Red Hat
Red Hat Enterprise Linux 9
Red Hat
Red Hat OpenShift Container Platform 4
Red Hat
Red Hat OpenShift Container Platform 4.22
Subsystems
OT Supporting Infrastructure
Sectors
Multiple
What to Know
A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled environment. A local, low privileged attacker can exploit this by using a crafted request_key payload to trick the root-owned helper into entering a custom environment (namespace) containing a malicious NSS module. This forces the system to load the attacker's controlled NSS Module and configuration, allowing them to execute arbitrary commands as the root user, elevating their privileges and fully compromising the system. (NVD)
What to Do
Monitor Red Hat's web page for any future patch releases.