Horizon Alert
Summary of the vulnerability and why it matters
The Linux kernel contains a flaw in how it handles specific integer data types during system calls. This can allow a local user to execute a crafted system call that escalates their privileges on the system. The vulnerability is within the kernel's event handling component.
- Vulnerable Linux kernel component
- Incorrect integer data type usage
- Local privilege escalation
Attack Path
How an attacker could exploit the issue
An attacker can exploit a vulnerability in the Linux kernel to gain elevated privileges. This requires the attacker to have local access to the affected system. By sending a specially crafted system call, the attacker can trigger the vulnerability.
- Local system access required.
- Attacker uses a crafted system call.
- Local users gain elevated privileges.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability in the Linux kernel allows local users to gain elevated privileges. Exploitation requires a local user to execute a specially crafted system call. The impact is a potential compromise of system integrity and confidentiality, posing a significant business risk.
- Likely attacker skill level: Low
- Required access or conditions: Local system access
- Business risk or urgency: High
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
A local privilege escalation vulnerability has been identified within the Linux kernel. This vulnerability could allow authenticated local users to gain elevated privileges on affected systems. The risk is associated with systems running specific versions of the Linux kernel prior to version 3.8.9.
- Find affected Linux assets.
- Reduce exposure or isolate risk.
- Fix, verify, and monitor.
