high
7.2
CWE
20
Advisory Published
Updated

CVE-2012-3515: Input Validation

First published: Fri Nov 23 2012(Updated: )

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."

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
QEMU KVM<1.2.0
Xen xen-unstable=4.0.0
Xen xen-unstable=4.1.0
openSUSE=11.4
openSUSE=12.1
openSUSE=12.2
SUSE Linux Enterprise Desktop with Beagle=10-sp4
SUSE Linux Enterprise Desktop with Beagle=11-sp2
SUSE Linux Enterprise Server=10-sp2
SUSE Linux Enterprise Server=10-sp3
SUSE Linux Enterprise Server=10-sp4
SUSE Linux Enterprise Server=11-sp1
SUSE Linux Enterprise Server=11-sp2
suse linux enterprise server vmware=11-sp2
SUSE Linux Enterprise Software Development Kit=10-sp4
SUSE Linux Enterprise Software Development Kit=11-sp2
Red Hat Enterprise Virtualization=3.0
Red Hat Enterprise Linux=6.0
Red Hat Enterprise Virtualization=5.0
Red Hat Enterprise Virtualization=6.0
redhat enterprise Linux desktop=5.0
redhat enterprise Linux desktop=6.0
redhat enterprise Linux eus=6.3
redhat enterprise Linux server=5.0
redhat enterprise Linux server=6.0
redhat enterprise Linux workstation=5.0
redhat enterprise Linux workstation=6.0
Debian GNU/Linux=6.0
Debian GNU/Linux=7.0
Ubuntu Linux=10.04
Ubuntu Linux=11.04
Ubuntu Linux=11.10
Ubuntu Linux=12.04

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2012-3515?

    CVE-2012-3515 has a high severity rating due to the potential privilege escalation for local OS guest users.

  • How do I fix CVE-2012-3515?

    To mitigate CVE-2012-3515, users should upgrade the affected QEMU version to 1.2.0 or higher.

  • Who is affected by CVE-2012-3515?

    CVE-2012-3515 affects systems utilizing QEMU versions prior to 1.2.0 and specific versions of Xen and openSUSE.

  • What systems are vulnerable to CVE-2012-3515?

    Vulnerable systems include Xen 4.0, 4.1 and various versions of openSUSE, SUSE Linux Enterprise, Red Hat, and Debian.

  • What type of vulnerability is CVE-2012-3515?

    CVE-2012-3515 is a privilege escalation vulnerability that arises from improper handling of escape VT100 sequences.

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