CVE-2014-3646 Denial of service in n/a

What is CVE-2014-3646?

CVE-2014-3646 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 10 Nov 2014. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel through 3.17.2 does not have an exit handler for the INVVPID instruction, which allows guest OS users to cause a denial of service (guest OS crash) via a crafted application.

Which versions are affected by CVE-2014-3646?

It affects 6 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel, Opensuse Evergreen, Redhat Enterprise Linux, Suse Suse Linux Enterprise Server.

How do I fix CVE-2014-3646?

Apply the vendor's patch.

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-2014-3646 being exploited?

There is no known exploitation of CVE-2014-3646 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2014-3646, GHSA-xq4c-q7v4-538j, UBUNTU-CVE-2014-3646.