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Bug 1112271 - (CVE-2014-3471) CVE-2014-3471 Qemu: hw: pci: use after free triggered via guest
CVE-2014-3471 Qemu: hw: pci: use after free triggered via guest
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20140623,repor...
: Security
Depends On: 1058321 1112274 1112532
Blocks: 1102527
  Show dependency treegraph
 
Reported: 2014-06-23 09:01 EDT by Prasad J Pandit
Modified: 2016-02-10 03:18 EST (History)
25 users (show)

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Doc Type: Bug Fix
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Last Closed: 2016-02-10 03:18:22 EST
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Description Prasad J Pandit 2014-06-23 09:01:54 EDT
Qemu PCIe bus support is vulnerable to a use-after-free flaw. It could occur
via guest, when it tries to hotplug/hotunplug devices on the guest.

A user able to add & delete Virtio block devices on a guest could use this
flaw to crash the Qemu instance resulting in DoS.

Upstream fix:
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  -> git.qemu.org/?p=qemu.git;a=commit;h=554f802da3f8b09b16b9a84ad5847b2eb0e9ad2b
Comment 1 Prasad J Pandit 2014-06-23 09:12:34 EDT
Statement:

This issue does not affect the versions of kvm package as shipped with Red Hat
Enterprise Linux 5.

This issue does not affect the versions of qemu-kvm package as shipped with Red Hat Enterprise Linux 6.

This issue does not affect the versions of qemu-kvm package as shipped with Red Hat Enterprise Linux 7.
Comment 2 Prasad J Pandit 2014-06-23 09:15:02 EDT
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1112274]

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