Bug 1303226 - qemu: Use-after-free vulnerability when unplugging devices
Summary: qemu: Use-after-free vulnerability when unplugging devices
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1305966
TreeView+ depends on / blocked
 
Reported: 2016-01-29 21:27 UTC by Adam Mariš
Modified: 2019-09-29 13:43 UTC (History)
39 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-02-11 06:20:18 UTC
Embargoed:

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Description Adam Mariš 2016-01-29 21:27:27 UTC 
Qemu emulator built with the IDE Emulation with PCI PIIX3/4 support is vulnerable to a use after free flaw. It occurs while unplugging the IDE device in pci_piix3_xen_ide_unplug in Xen virtualisation setup.

A privileged user inside guest could use this issue to crash the Qemu process resulting in DoS.

Upstream patch:
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  -> http://git.qemu.org/?p=qemu.git;a=commitdiff;h=6cd387833d05e8ad31829d97e47
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