CVE-2014-2894 Memory corruption in n/a

High 7.2 Published Updated

Local attackers can exploit a buffer underflow in QEMU's SMART self-test to cause memory corruption, potentially leading to code execution 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
Available

What is CVE-2014-2894?

CVE-2014-2894 is a high-severity memory corruption vulnerability in Qemu Qemu, published on 23 Apr 2014. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Off-by-one error in the cmd_smart function in the smart self test in hw/ide/core.c in QEMU before 2.0 allows local users to have unspecified impact via a SMART EXECUTE OFFLINE command that triggers a buffer underflow and memory corruption.

Weakness: CWE-189

Which versions are affected by CVE-2014-2894?

It affects 1 product.

Linux distribution packages (36)
libcacard Red Hat:enterprise_linux:7::clientAll versions10:1.5.3-60.el7_0.2
libcacard-devel Red Hat:enterprise_linux:7::clientAll versions10:1.5.3-60.el7_0.2
libcacard-tools Red Hat:enterprise_linux:7::clientAll versions10:1.5.3-60.el7_0.2
qemu-guest-agent Red Hat:enterprise_linux:7::clientAll versions10:1.5.3-60.el7_0.2
qemu-img Red Hat:enterprise_linux:7::clientAll versions10:1.5.3-60.el7_0.2
qemu-kvm Red Hat:enterprise_linux:7::clientAll versions10:1.5.3-60.el7_0.2
qemu-kvm-common Red Hat:enterprise_linux:7::clientAll versions10:1.5.3-60.el7_0.2
qemu-kvm-debuginfo Red Hat:enterprise_linux:7::clientAll versions10:1.5.3-60.el7_0.2
qemu-kvm-tools Red Hat:enterprise_linux:7::clientAll versions10:1.5.3-60.el7_0.2
libcacard Red Hat:enterprise_linux:7::computenodeAll versions10:1.5.3-60.el7_0.2
libcacard-devel Red Hat:enterprise_linux:7::computenodeAll versions10:1.5.3-60.el7_0.2
libcacard-tools Red Hat:enterprise_linux:7::computenodeAll versions10:1.5.3-60.el7_0.2
qemu-guest-agent Red Hat:enterprise_linux:7::computenodeAll versions10:1.5.3-60.el7_0.2
qemu-img Red Hat:enterprise_linux:7::computenodeAll versions10:1.5.3-60.el7_0.2
qemu-kvm Red Hat:enterprise_linux:7::computenodeAll versions10:1.5.3-60.el7_0.2
qemu-kvm-common Red Hat:enterprise_linux:7::computenodeAll versions10:1.5.3-60.el7_0.2
qemu-kvm-debuginfo Red Hat:enterprise_linux:7::computenodeAll versions10:1.5.3-60.el7_0.2
qemu-kvm-tools Red Hat:enterprise_linux:7::computenodeAll versions10:1.5.3-60.el7_0.2
libcacard Red Hat:enterprise_linux:7::serverAll versions10:1.5.3-60.el7_0.2
libcacard-devel Red Hat:enterprise_linux:7::serverAll versions10:1.5.3-60.el7_0.2
libcacard-tools Red Hat:enterprise_linux:7::serverAll versions10:1.5.3-60.el7_0.2
qemu-guest-agent Red Hat:enterprise_linux:7::serverAll versions10:1.5.3-60.el7_0.2
qemu-img Red Hat:enterprise_linux:7::serverAll versions10:1.5.3-60.el7_0.2
qemu-kvm Red Hat:enterprise_linux:7::serverAll versions10:1.5.3-60.el7_0.2
qemu-kvm-common Red Hat:enterprise_linux:7::serverAll versions10:1.5.3-60.el7_0.2
qemu-kvm-debuginfo Red Hat:enterprise_linux:7::serverAll versions10:1.5.3-60.el7_0.2
qemu-kvm-tools Red Hat:enterprise_linux:7::serverAll versions10:1.5.3-60.el7_0.2
libcacard Red Hat:enterprise_linux:7::workstationAll versions10:1.5.3-60.el7_0.2
libcacard-devel Red Hat:enterprise_linux:7::workstationAll versions10:1.5.3-60.el7_0.2
libcacard-tools Red Hat:enterprise_linux:7::workstationAll versions10:1.5.3-60.el7_0.2
qemu-guest-agent Red Hat:enterprise_linux:7::workstationAll versions10:1.5.3-60.el7_0.2
qemu-img Red Hat:enterprise_linux:7::workstationAll versions10:1.5.3-60.el7_0.2
qemu-kvm Red Hat:enterprise_linux:7::workstationAll versions10:1.5.3-60.el7_0.2
qemu-kvm-common Red Hat:enterprise_linux:7::workstationAll versions10:1.5.3-60.el7_0.2
qemu-kvm-debuginfo Red Hat:enterprise_linux:7::workstationAll versions10:1.5.3-60.el7_0.2
qemu-kvm-tools Red Hat:enterprise_linux:7::workstationAll versions10:1.5.3-60.el7_0.2

Products include Qemu Qemu.

How do I fix CVE-2014-2894?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2014-2894 being exploited?

There is no known exploitation of CVE-2014-2894 in the wild and no public exploit code.

All Qemu Qemu vulnerabilities

Sources

Also known as DEBIAN-CVE-2014-2894, GHSA-5v9x-x46w-vf3f, RHSA-2014:0704, UBUNTU-CVE-2014-2894.

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