CVE-2023-28410
📋 TL;DR
This vulnerability in Intel i915 Graphics drivers for Linux allows an authenticated local user to perform memory buffer operations beyond intended bounds, potentially leading to privilege escalation. It affects Linux systems with Intel graphics before kernel version 6.2.10. Attackers with local access could gain elevated privileges on vulnerable systems.
💻 Affected Systems
- Intel i915 Graphics Driver for Linux
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Authenticated attacker gains root privileges, enabling complete system compromise, data theft, persistence, and lateral movement.
Likely Case
Local user escalates privileges to gain unauthorized access to sensitive resources or install malware.
If Mitigated
With proper access controls and monitoring, impact limited to isolated system compromise without lateral movement.
🎯 Exploit Status
Requires local authenticated access and knowledge of memory manipulation techniques. No public exploit code known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Linux kernel 6.2.10 or later
Vendor Advisory: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00886.html
Restart Required: Yes
Instructions:
1. Update Linux kernel to version 6.2.10 or later. 2. For distributions: Use package manager (apt/yum/dnf) to update kernel. 3. Reboot system after update. 4. Verify kernel version post-reboot.
🔧 Temporary Workarounds
Restrict local user access
linuxLimit local user accounts and implement strict access controls to reduce attack surface
Disable vulnerable driver module
linuxBlacklist i915 driver module if Intel graphics not required (may break display functionality)
echo 'blacklist i915' >> /etc/modprobe.d/blacklist.conf
update-initramfs -u
reboot
🧯 If You Can't Patch
- Implement strict least-privilege access controls for local users
- Monitor system logs for privilege escalation attempts and unusual user activity
🔍 How to Verify
Check if Vulnerable:
Check kernel version: uname -r. If version is earlier than 6.2.10 and system uses Intel graphics, it's vulnerable.Check Version:
uname -rVerify Fix Applied:
After update and reboot, verify kernel version is 6.2.10 or later with: uname -r📡 Detection & Monitoring
Log Indicators:
- Failed privilege escalation attempts
- Unusual kernel module loading
- Suspicious user privilege changes
Network Indicators:
- None - local exploit only
SIEM Query:
source="kernel" AND ("i915" OR "privilege escalation" OR "segmentation fault")