CVE-2024-38621
📋 TL;DR
This CVE describes a buffer overflow vulnerability in the Linux kernel's stk1160 video driver. The flaw allows attackers to write beyond allocated memory bounds, potentially leading to system crashes or arbitrary code execution. Systems using the stk1160 driver for video capture devices are affected.
💻 Affected Systems
- Linux kernel with stk1160 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 →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 →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
Local privilege escalation to kernel-level code execution, potentially leading to full system compromise.
Likely Case
Kernel panic or system crash causing denial of service.
If Mitigated
System remains stable with proper access controls preventing local user exploitation.
🎯 Exploit Status
Requires local access and knowledge of the stk1160 driver usage. Exploitation would need to trigger the vulnerable copy_video() function.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Kernel versions containing commits: 7532bcec0797adfa08791301c3bcae14141db3bd, a08492832cc4cacc24e0612f483c86ca899b9261, a16775828aaed1c54ff4e6fe83e8e4d5c6a50cb7, b504518a397059e1d55c521ba0ea2b545a6c4b52, d410017a7181cb55e4a5c810b32b75e4416c6808
Vendor Advisory: https://git.kernel.org/stable/c/7532bcec0797adfa08791301c3bcae14141db3bd
Restart Required: Yes
Instructions:
1. Update Linux kernel to patched version from your distribution's repositories. 2. Reboot system to load new kernel. 3. Verify stk1160 driver is not loaded if not needed.
🔧 Temporary Workarounds
Disable stk1160 driver
linuxPrevent loading of the vulnerable driver module
echo 'blacklist stk1160' >> /etc/modprobe.d/blacklist-stk1160.conf
rmmod stk1160
🧯 If You Can't Patch
- Restrict local user access to systems with stk1160 devices
- Disconnect or disable stk1160 compatible USB video capture devices
🔍 How to Verify
Check if Vulnerable:
Check if stk1160 module is loaded: lsmod | grep stk1160. Check kernel version against patched versions.Check Version:
uname -rVerify Fix Applied:
Verify kernel version is updated and stk1160 module version matches patched kernel.📡 Detection & Monitoring
Log Indicators:
- Kernel oops messages
- System crashes when using video capture
- dmesg errors related to stk1160
Network Indicators:
- None - local vulnerability only
SIEM Query:
Search for kernel panic events or module loading failures related to stk1160🔗 References
- https://git.kernel.org/stable/c/7532bcec0797adfa08791301c3bcae14141db3bd
- https://git.kernel.org/stable/c/a08492832cc4cacc24e0612f483c86ca899b9261
- https://git.kernel.org/stable/c/a16775828aaed1c54ff4e6fe83e8e4d5c6a50cb7
- https://git.kernel.org/stable/c/b504518a397059e1d55c521ba0ea2b545a6c4b52
- https://git.kernel.org/stable/c/d410017a7181cb55e4a5c810b32b75e4416c6808
- https://git.kernel.org/stable/c/ecf4ddc3aee8ade504c4d36b7b4053ce6093e200
- https://git.kernel.org/stable/c/f6a392266276730bea893b55d12940e32a25f56a
- https://git.kernel.org/stable/c/faa4364bef2ec0060de381ff028d1d836600a381
- https://git.kernel.org/stable/c/7532bcec0797adfa08791301c3bcae14141db3bd
- https://git.kernel.org/stable/c/a08492832cc4cacc24e0612f483c86ca899b9261
- https://git.kernel.org/stable/c/a16775828aaed1c54ff4e6fe83e8e4d5c6a50cb7
- https://git.kernel.org/stable/c/b504518a397059e1d55c521ba0ea2b545a6c4b52
- https://git.kernel.org/stable/c/d410017a7181cb55e4a5c810b32b75e4416c6808
- https://git.kernel.org/stable/c/ecf4ddc3aee8ade504c4d36b7b4053ce6093e200
- https://git.kernel.org/stable/c/f6a392266276730bea893b55d12940e32a25f56a
- https://git.kernel.org/stable/c/faa4364bef2ec0060de381ff028d1d836600a381
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
