CVE-2024-58010
📋 TL;DR
This CVE describes an integer overflow vulnerability in the Linux kernel's binfmt_flat binary format loader on 32-bit systems. An attacker could exploit this to cause a kernel panic (denial of service) or potentially execute arbitrary code with kernel privileges. Systems running 32-bit Linux kernels with binfmt_flat enabled are affected.
💻 Affected Systems
- Linux kernel
📦 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 →⚠️ Risk & Real-World Impact
Worst Case
Kernel panic leading to system crash and denial of service, or potential arbitrary code execution with kernel privileges resulting in complete system compromise.
Likely Case
Kernel panic causing system crash and denial of service, requiring physical or remote console access to reboot.
If Mitigated
No impact if binfmt_flat is disabled or system is patched.
🎯 Exploit Status
Requires ability to load malicious flat binaries on affected system. No public exploit code known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Patches available in stable kernel trees via provided git commits
Vendor Advisory: https://git.kernel.org/stable/c/0b6be54d7386b7addbf9e5947366f94aad046938
Restart Required: Yes
Instructions:
1. Update Linux kernel to version containing fixes from provided git commits. 2. Reboot system to load new kernel.
🔧 Temporary Workarounds
Disable binfmt_flat module
linuxPrevent loading of flat binaries by disabling the binfmt_flat module
echo 'blacklist binfmt_flat' > /etc/modprobe.d/disable-binfmt_flat.conf
rmmod binfmt_flat
🧯 If You Can't Patch
- Disable binfmt_flat module if not required
- Restrict user permissions to prevent loading of untrusted flat binaries
🔍 How to Verify
Check if Vulnerable:
Check if binfmt_flat module is loaded: lsmod | grep binfmt_flat
Check Version:
uname -r
Verify Fix Applied:
Check kernel version against patched versions from git commits, verify binfmt_flat is disabled or system is updated
📡 Detection & Monitoring
Log Indicators:
- Kernel panic messages in /var/log/messages or dmesg
- Failed flat binary loading attempts
Network Indicators:
- None - local vulnerability only
SIEM Query:
Search for kernel panic events or binfmt_flat related errors in system logs
🔗 References
- https://git.kernel.org/stable/c/0b6be54d7386b7addbf9e5947366f94aad046938
- https://git.kernel.org/stable/c/55cf2f4b945f6a6416cc2524ba740b83cc9af25a
- https://git.kernel.org/stable/c/6fb98e0576ea155267e206286413dcb3a3d55c12
- https://git.kernel.org/stable/c/8e8cd712bb06a507b26efd2a56155076aa454345
- https://git.kernel.org/stable/c/95506c7f33452450346fbe2975c1359100f854ca
- https://git.kernel.org/stable/c/a009378af674b808efcca1e2e67916e79ce866b3
- https://git.kernel.org/stable/c/bc8ca18b8ef4648532c001bd6c8151143b569275
- https://git.kernel.org/stable/c/d17ca8f2dfcf423c439859995910a20e38b86f00
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html