CVE-2022-50182
📋 TL;DR
A memory corruption vulnerability in the Linux kernel's imx-jpeg media driver allows out-of-bounds memory access when processing certain JPEG images. This affects Linux systems using the i.MX JPEG hardware acceleration driver. Attackers could potentially exploit this to crash systems or execute arbitrary code.
💻 Affected Systems
- Linux kernel with imx-jpeg driver
📦 What is this software?
Linux Kernel by Linux
The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...
Learn more about Linux Kernel →Linux Kernel by Linux
The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...
Learn more about Linux Kernel →Linux Kernel by Linux
The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...
Learn more about Linux Kernel →⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to full system compromise, kernel privilege escalation, or persistent backdoor installation.
Likely Case
Kernel panic causing system crash/reboot, denial of service, or information disclosure through memory leaks.
If Mitigated
System crash requiring reboot, minimal data loss if applications have proper recovery mechanisms.
🎯 Exploit Status
Exploitation requires crafting malicious JPEG images that trigger the buffer misalignment. No public exploits known as of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Kernel versions containing commits: 447795ffb17cd60bb544e0abfc9399e180a14a2f, 73d1836ed7911953182b787745cb8c5857a2661c, 9ae2d729de6350c53a06c57782751d84eb2c08d9, 9e7aa76cdb02923ee23a0ddd48f38bdc3512f92b
Vendor Advisory: https://git.kernel.org/stable/c/447795ffb17cd60bb544e0abfc9399e180a14a2f
Restart Required: Yes
Instructions:
1. Update Linux kernel to patched version from your distribution. 2. For custom kernels, apply the upstream commits. 3. Reboot system to load new kernel.
🔧 Temporary Workarounds
Disable imx-jpeg module
linuxPrevent loading of vulnerable driver if not required
echo 'blacklist imx_jpeg' >> /etc/modprobe.d/blacklist-imx-jpeg.conf
rmmod imx_jpeg
Restrict JPEG processing
allLimit JPEG image processing to trusted sources
🧯 If You Can't Patch
- Implement strict input validation for JPEG images before processing
- Isolate systems using i.MX JPEG acceleration in network segments with limited access
🔍 How to Verify
Check if Vulnerable:
Check if imx_jpeg module is loaded: lsmod | grep imx_jpeg. Check kernel version against patched versions.Check Version:
uname -rVerify Fix Applied:
Verify kernel version includes the fix commits. Check dmesg for imx-jpeg driver loading without errors.📡 Detection & Monitoring
Log Indicators:
- Kernel oops messages
- System crashes/reboots after JPEG processing
- imx_jpeg driver error messages in dmesg
Network Indicators:
- Unusual JPEG upload patterns to image processing services
- Multiple failed JPEG processing attempts
SIEM Query:
source="kernel" AND ("imx_jpeg" OR "jpeg" OR "media") AND ("error" OR "panic" OR "oops")