Ubuntu 14.04 LTS / 15.04 : qemu vulnerabilities (USN-2692-1)

Ubuntu Security Notice (C) 2015-2016 Canonical, Inc. / NASL script (C) 2015-2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related
patches.

Description :

Matt Tait discovered that QEMU incorrectly handled PIT emulation. In a
non-default configuration, a malicious guest could use this issue to
cause a denial of service, or possibly execute arbitrary code on the
host as the user running the QEMU process. In the default
installation, when QEMU is used with libvirt, attackers would be
isolated by the libvirt AppArmor profile. (CVE-2015-3214)

Kevin Wolf discovered that QEMU incorrectly handled processing ATAPI
commands. A malicious guest could use this issue to cause a denial of
service, or possibly execute arbitrary code on the host as the user
running the QEMU process. In the default installation, when QEMU is
used with libvirt, attackers would be isolated by the libvirt AppArmor
profile. (CVE-2015-5154)

Zhu Donghai discovered that QEMU incorrectly handled the SCSI driver.
A malicious guest could use this issue to cause a denial of service,
or possibly execute arbitrary code on the host as the user running the
QEMU process. In the default installation, when QEMU is used with
libvirt, attackers would be isolated by the libvirt AppArmor profile.
This issue only affected Ubuntu 15.04. (CVE-2015-5158).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 5.3
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 85080 ()

Bugtraq ID:

CVE ID: CVE-2015-3214
CVE-2015-5154
CVE-2015-5158

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