CVE-2014-7155 Privilege escalation in n/a

What is CVE-2014-7155?

CVE-2014-7155 is a medium-severity vulnerability in Debian Debian Linux, published on 2 Oct 2014. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction.

Weakness: CWE-264

Which versions are affected by CVE-2014-7155?

It affects 4 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Opensuse Opensuse, Xen Xen.

How do I fix CVE-2014-7155?

Apply the vendor's patch.

Is CVE-2014-7155 being exploited?

There is no known exploitation of CVE-2014-7155 in the wild and no public exploit code.

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• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2014-7155, GHSA-7w7p-f566-6r85, UBUNTU-CVE-2014-7155.