Security Advisory SA44648 - KVM qemu-kvm Two Vulnerabilities

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Secunia Advisory SA44648

KVM qemu-kvm Two Vulnerabilities

Secunia Advisory

SA44648

Release Date

2011-05-19

Last Update

2011-07-05

Popularity

1,839 view

Comments

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Criticality level

Less critical

Impact

Privilege escalation
DoS

Where

Local system

Authentication level

This information is available to Secunia VIM customers

Report reliability

This information is available to Secunia VIM customers

Solution Status

Vendor Workaround

Systems affected

This information is available to Secunia VIM customers

Approve distribution

This information is available to Secunia VIM customers

Software:

KVM (Kernel-based Virtual Machine)

Secunia CVSS Score

This information is available to Secunia VIM Customers

CVE Reference(s)

CVE-2011-1751 CVSS score available to Secunia VIM customers
CVE-2011-2512 CVSS score available to Secunia VIM customers

Description

Two vulnerabilities have been reported in KVM qemu-kvm, which can be exploited by malicious, local users in a guest virtual machine to cause a DoS (Denial of Service) and gain escalated privileges.

1) A vulnerability is caused due to the PIIX4 emulation allowing to unplug non-hotpluggable PCI devices.

For more information:
SA44458

2) The VirtIO implementation does not properly validating VirtIO queue notifications.

For more information:
SA44458

Solution
Fixed in the GIT repository.
Further details available to Secunia VIM customers

Changelog
Further details available to Secunia VIM customers

Original Advisory
http://git.kernel.org/?p=virt/kvm/qemu-kvm.git;a=commit;h=505597e4476a6bc219d0ec1362b760d71cb4fdca
http://git.kernel.org/?p=virt/kvm/qemu-kvm.git;a=commitdiff;h=7157e2e23e89adcd436caeab31fdd6b47eded377

Other references
Further details available to Secunia VIM customers

Deep Links
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: KVM qemu-kvm Two Vulnerabilities

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Secunia Advisory SA44648

KVM qemu-kvm Two Vulnerabilities

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