Bug 1471638 - (CVE-2017-11334) CVE-2017-11334 Qemu: exec: oob access during dma operation
CVE-2017-11334 Qemu: exec: oob access during dma operation
Status: NEW
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=20170713,repor...
: Security
Depends On: 1471641 1471639 1471640 1471642 1471643 1471644 1471645 1471646 1471647 1471648 1472185 1474625 1520683
Blocks: 1470243 1520687
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Reported: 2017-07-17 03:18 EDT by Prasad J Pandit
Modified: 2017-12-14 17:25 EST (History)
43 users (show)

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Doc Text:
Quick Emulator (QEMU), compiled with qemu_map_ram_ptr to access guests' RAM block area, is vulnerable to an OOB r/w access issue. The crash can occur if a privileged user inside a guest conducts certain DMA operations, resulting in a DoS.
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RHEL 7.3 requirements from Atomic Host:
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Description Prasad J Pandit 2017-07-17 03:18:14 EDT
Qemu emulator built to use 'qemu_map_ram_ptr' to access guests' ram block area
is vulnerable to a OOB r/w access issue. It could occur during a DMA operation.

A privileged user inside guest could use this flaw to crash the guest instance
resulting in DoS.

Upstream patch:
---------------
  -> https://git.qemu.org/?p=qemu.git;a=commitdiff;h=04bf2526ce87f21b32c9acba1c5518708c243ad0

Reference:
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  -> http://www.openwall.com/lists/oss-security/2017/07/17/4
Comment 1 Prasad J Pandit 2017-07-17 03:18:47 EDT
Acknowledgments:

Name: Alex
Comment 2 Prasad J Pandit 2017-07-17 03:20:29 EDT
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1471640]
Comment 3 Prasad J Pandit 2017-07-17 03:20:48 EDT
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1471639]
Comment 12 errata-xmlrpc 2017-11-30 15:33:29 EST
This issue has been addressed in the following products:

  RHEV 4.X RHEV-H and Agents for RHEL-7

Via RHSA-2017:3369 https://access.redhat.com/errata/RHSA-2017:3369
Comment 16 errata-xmlrpc 2017-12-14 17:14:27 EST
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 8.0 (Liberty)

Via RHSA-2017:3471 https://access.redhat.com/errata/RHSA-2017:3471
Comment 17 errata-xmlrpc 2017-12-14 17:17:31 EST
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 9.0 (Mitaka)

Via RHSA-2017:3470 https://access.redhat.com/errata/RHSA-2017:3470
Comment 18 errata-xmlrpc 2017-12-14 17:19:35 EST
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 11.0 (Ocata)

Via RHSA-2017:3466 https://access.redhat.com/errata/RHSA-2017:3466
Comment 19 errata-xmlrpc 2017-12-14 17:21:22 EST
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 10.0 (Newton)

Via RHSA-2017:3474 https://access.redhat.com/errata/RHSA-2017:3474
Comment 20 errata-xmlrpc 2017-12-14 17:23:27 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7

Via RHSA-2017:3472 https://access.redhat.com/errata/RHSA-2017:3472
Comment 21 errata-xmlrpc 2017-12-14 17:25:14 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7

Via RHSA-2017:3473 https://access.redhat.com/errata/RHSA-2017:3473

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