CVE-2013-1796 Memory corruption in n/a
A guest OS user can trigger a buffer overflow in the Linux kernel KVM module, causing host denial of service or potential code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2013-1796?
CVE-2013-1796 is a medium-severity memory corruption vulnerability in Linux kernel, published on 22 Mar 2013. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The kvm_set_msr_common function in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4 does not ensure a required time_page alignment during an MSR_KVM_SYSTEM_TIME operation, which allows guest OS users to cause a denial of service (buffer overflow and host OS memory corruption) or possibly have unspecified other impact via a crafted application.
Weakness: CWE-119
Which versions are affected by CVE-2013-1796?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2013-1796?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2013-1796 being exploited?
There is no known exploitation of CVE-2013-1796 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2013-1796, GHSA-xr82-v4c6-wp6r.