CVE-2009-4004 Memory corruption in n/a
Local attackers can trigger memory corruption in the Linux kernel KVM subsystem via a crafted IOCTL, causing denial of service or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2009-4004?
CVE-2009-4004 is a high-severity memory corruption vulnerability in Linux kernel, published on 20 Nov 2009. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Buffer overflow in the kvm_vcpu_ioctl_x86_setup_mce function in arch/x86/kvm/x86.c in the KVM subsystem in the Linux kernel before 2.6.32-rc7 allows local users to cause a denial of service (memory corruption) or possibly gain privileges via a KVM_X86_SETUP_MCE IOCTL request that specifies a large number of Machine Check Exception (MCE) banks.
Weakness: CWE-119
Which versions are affected by CVE-2009-4004?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2009-4004?
No fix has been published for CVE-2009-4004 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2009-4004 being exploited?
There is no known exploitation of CVE-2009-4004 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as GHSA-xc28-j839-8wv2.