CVE-2010-3698 Denial of service in n/a

Medium 4.9 Published 26 Nov 2010 Updated 7 Aug 2024

Local users can crash the host OS via a crafted KVM ioctl call due to improper segment register reloading in the Linux kernel.

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-2010-3698?

CVE-2010-3698 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 26 Nov 2010. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The KVM implementation in the Linux kernel before 2.6.36 does not properly reload the FS and GS segment registers, which allows host OS users to cause a denial of service (host OS crash) via a KVM_RUN ioctl call in conjunction with a modified Local Descriptor Table (LDT).

Weakness: CWE-400

Which versions are affected by CVE-2010-3698?

It affects 2 products.

Linux distribution packages (10)

`kmod-kvm` Red Hat:rhel_virtualization:5::client	All versions	`0:83-164.el5_5.25`
`kvm` Red Hat:rhel_virtualization:5::client	All versions	`0:83-164.el5_5.25`
`kvm-debuginfo` Red Hat:rhel_virtualization:5::client	All versions	`0:83-164.el5_5.25`
`kvm-qemu-img` Red Hat:rhel_virtualization:5::client	All versions	`0:83-164.el5_5.25`
`kvm-tools` Red Hat:rhel_virtualization:5::client	All versions	`0:83-164.el5_5.25`
`kmod-kvm` Red Hat:rhel_virtualization:5::server	All versions	`0:83-164.el5_5.25`
`kvm` Red Hat:rhel_virtualization:5::server	All versions	`0:83-164.el5_5.25`
`kvm-debuginfo` Red Hat:rhel_virtualization:5::server	All versions	`0:83-164.el5_5.25`
`kvm-qemu-img` Red Hat:rhel_virtualization:5::server	All versions	`0:83-164.el5_5.25`
`kvm-tools` Red Hat:rhel_virtualization:5::server	All versions	`0:83-164.el5_5.25`

Products include Fedoraproject Fedora, Linux kernel.

How do I fix CVE-2010-3698?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2010-3698 being exploited?

There is no known exploitation of CVE-2010-3698 in the wild and no public exploit code.

All Fedoraproject Fedora vulnerabilities

Sources

Also known as GHSA-8cc7-m958-9r87, RHSA-2010:0898.