CVE-2014-3471

Publication date 26 June 2014

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

Description

Use-after-free vulnerability in hw/pci/pcie.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (QEMU instance crash) via hotplug and hotunplug operations of Virtio block devices.

Read the notes from the security team

Status

Package Ubuntu Release Status
qemu 14.04 LTS trusty
Fixed 2.0.0+dfsg-2ubuntu1.3
13.10 saucy
Not affected
12.04 LTS precise Not in release
10.04 LTS lucid Not in release
qemu-kvm 14.04 LTS trusty Not in release
13.10 saucy Not in release
12.04 LTS precise
Not affected
10.04 LTS lucid
Not affected

Notes

jdstrand

12.04 LTS and 13.10 do not have pcie hot unplug support 10.04 LTS does not have pcie.c

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
qemu

Severity score breakdown

Parameter Value
Base score 5.5 · Medium
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-2342-1
    • QEMU vulnerabilities
    • 8 September 2014

Other references