CVE-2012-3515 Memory corruption in n/a

High 7.2 Published Updated

Local guest users can escalate privileges or execute code by sending crafted VT100 escape sequences to QEMU virtual consoles.

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-2012-3515?

CVE-2012-3515 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 23 Nov 2012. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Qemu, as used in Xen 4.0, 4.1 and possibly other products, when emulating certain devices with a virtual console backend, allows local OS guest users to gain privileges via a crafted escape VT100 sequence that triggers the overwrite of a "device model's address space."

Weakness: CWE-20

Which versions are affected by CVE-2012-3515?

It affects 13 products.

Linux distribution packages (40)
xen Red Hat:enterprise_linux:5::clientAll versions0:3.0.3-135.el5_8.5
xen-debuginfo Red Hat:enterprise_linux:5::clientAll versions0:3.0.3-135.el5_8.5
xen-libs Red Hat:enterprise_linux:5::clientAll versions0:3.0.3-135.el5_8.5
xen Red Hat:enterprise_linux:5::serverAll versions0:3.0.3-135.el5_8.5
xen-debuginfo Red Hat:enterprise_linux:5::serverAll versions0:3.0.3-135.el5_8.5
xen-libs Red Hat:enterprise_linux:5::serverAll versions0:3.0.3-135.el5_8.5
qemu-guest-agent Red Hat:enterprise_linux:6::clientAll versions2:0.12.1.2-2.295.el6_3.2
qemu-img Red Hat:enterprise_linux:6::clientAll versions2:0.12.1.2-2.295.el6_3.2
qemu-kvm Red Hat:enterprise_linux:6::clientAll versions2:0.12.1.2-2.295.el6_3.2
qemu-kvm-debuginfo Red Hat:enterprise_linux:6::clientAll versions2:0.12.1.2-2.295.el6_3.2
qemu-kvm-tools Red Hat:enterprise_linux:6::clientAll versions2:0.12.1.2-2.295.el6_3.2
qemu-guest-agent Red Hat:enterprise_linux:6::computenodeAll versions2:0.12.1.2-2.295.el6_3.2
qemu-img Red Hat:enterprise_linux:6::computenodeAll versions2:0.12.1.2-2.295.el6_3.2
qemu-kvm Red Hat:enterprise_linux:6::computenodeAll versions2:0.12.1.2-2.295.el6_3.2
qemu-kvm-debuginfo Red Hat:enterprise_linux:6::computenodeAll versions2:0.12.1.2-2.295.el6_3.2
qemu-kvm-tools Red Hat:enterprise_linux:6::computenodeAll versions2:0.12.1.2-2.295.el6_3.2
qemu-img-rhev Red Hat:enterprise_linux:6::hypervisorAll versions2:0.12.1.2-2.295.el6_3.2
qemu-kvm-rhev Red Hat:enterprise_linux:6::hypervisorAll versions2:0.12.1.2-2.295.el6_3.2
qemu-kvm-rhev-debuginfo Red Hat:enterprise_linux:6::hypervisorAll versions2:0.12.1.2-2.295.el6_3.2
qemu-kvm-rhev-tools Red Hat:enterprise_linux:6::hypervisorAll versions2:0.12.1.2-2.295.el6_3.2
qemu-guest-agent Red Hat:enterprise_linux:6::serverAll versions2:0.12.1.2-2.295.el6_3.2
qemu-img Red Hat:enterprise_linux:6::serverAll versions2:0.12.1.2-2.295.el6_3.2
qemu-kvm Red Hat:enterprise_linux:6::serverAll versions2:0.12.1.2-2.295.el6_3.2
qemu-kvm-debuginfo Red Hat:enterprise_linux:6::serverAll versions2:0.12.1.2-2.295.el6_3.2
qemu-kvm-tools Red Hat:enterprise_linux:6::serverAll versions2:0.12.1.2-2.295.el6_3.2
qemu-guest-agent Red Hat:enterprise_linux:6::workstationAll versions2:0.12.1.2-2.295.el6_3.2
qemu-img Red Hat:enterprise_linux:6::workstationAll versions2:0.12.1.2-2.295.el6_3.2
qemu-kvm Red Hat:enterprise_linux:6::workstationAll versions2:0.12.1.2-2.295.el6_3.2
qemu-kvm-debuginfo Red Hat:enterprise_linux:6::workstationAll versions2:0.12.1.2-2.295.el6_3.2
qemu-kvm-tools Red Hat:enterprise_linux:6::workstationAll versions2:0.12.1.2-2.295.el6_3.2
kmod-kvm Red Hat:rhel_virtualization:5::clientAll versions0:83-249.el5_8.5
kmod-kvm-debug Red Hat:rhel_virtualization:5::clientAll versions0:83-249.el5_8.5
kvm Red Hat:rhel_virtualization:5::clientAll versions0:83-249.el5_8.5
kvm-debuginfo Red Hat:rhel_virtualization:5::clientAll versions0:83-249.el5_8.5
kvm-qemu-img Red Hat:rhel_virtualization:5::clientAll versions0:83-249.el5_8.5
kvm-tools Red Hat:rhel_virtualization:5::clientAll versions0:83-249.el5_8.5
xen Red Hat:rhel_virtualization:5::clientAll versions0:3.0.3-135.el5_8.5
xen-debuginfo Red Hat:rhel_virtualization:5::clientAll versions0:3.0.3-135.el5_8.5
xen-devel Red Hat:rhel_virtualization:5::clientAll versions0:3.0.3-135.el5_8.5
kmod-kvm Red Hat:rhel_virtualization:5::serverAll versions0:83-249.el5_8.5

Products include Canonical Ubuntu Linux, Debian Debian Linux, Opensuse Opensuse, Qemu Qemu, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Eus and 7 more.

How do I fix CVE-2012-3515?

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-2012-3515 being exploited?

There is no known exploitation of CVE-2012-3515 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2012-3515, GHSA-rwhm-5hjg-54j9, RHSA-2012:1233, RHSA-2012:1234, RHSA-2012:1235, RHSA-2012:1236.

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