Horizon Alert
Summary of the vulnerability and why it matters
A vulnerability in the Linux kernel's Filesystem Context functionality could allow a local user to escalate privileges. The flaw resides in how the `legacy_parse_param` function handles parameter length verification. Exploiting this could grant unauthorized elevated access on a compromised system.
- Vulnerable Linux kernel component
- Flaw in parameter length verification
- Local privilege escalation impact
Attack Path
How an attacker could exploit the issue
This vulnerability affects the Linux kernel's filesystem handling. An attacker can exploit a flaw in how the kernel parses parameters within certain filesystems. This allows an unprivileged local user to gain elevated privileges on the system.
- Requires local access.
- Attacker opens a specific filesystem.
- Triggers privilege escalation.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability presents a risk of privilege escalation for local users on affected systems. An attacker with initial access could exploit this flaw to gain elevated permissions, potentially leading to unauthorized system control and data compromise. Organizations should prioritize addressing this vulnerability to mitigate potential business risks.
- 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
This vulnerability allows local users with specific privileges to escalate their access on affected systems. Understanding the scope of impact is critical for maintaining system integrity and preventing unauthorized access. The business risk involves potential unauthorized system control and data compromise.
- Identify systems running the affected Linux kernel versions or NetApp firmware.
- Isolate or restrict access to potentially vulnerable systems.
- Apply vendor patches, verify implementation, and monitor for anomalies.
