Oracle Linux 6 : qemu-kvm (ELSA-2011-1777)

Medium Nessus Plugin ID 68398


The remote Oracle Linux host is missing one or more security updates.


From Red Hat Security Advisory 2011:1777 :

Updated qemu-kvm packages that fix one security issue are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. qemu-kvm is the user-space component for running virtual machines using KVM.

A flaw was found in the way qemu-kvm handled VSC_ATR messages when a guest was configured for a CCID (Chip/Smart Card Interface Devices) USB smart card reader in passthrough mode. An attacker able to connect to the port on the host being used for such a device could use this flaw to crash the qemu-kvm process on the host or, possibly, escalate their privileges on the host. (CVE-2011-4111)

All users of qemu-kvm should upgrade to these updated packages, which contain a backported patch to resolve this issue. After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect.


Update the affected qemu-kvm packages.

See Also

Plugin Details

Severity: Medium

ID: 68398

File Name: oraclelinux_ELSA-2011-1777.nasl

Version: $Revision: 1.6 $

Type: local

Agent: unix

Published: 2013/07/12

Modified: 2016/04/28

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:A/AC:H/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:qemu-img, p-cpe:/a:oracle:linux:qemu-kvm, p-cpe:/a:oracle:linux:qemu-kvm-tools, cpe:/o:oracle:linux:6

Required KB Items: Host/local_checks_enabled, Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2011/12/17

Reference Information

CVE: CVE-2011-4111

BID: 50933

OSVDB: 104231

RHSA: 2011:1777