Bug 1420484 (CVE-2017-2620, xsa209) - CVE-2017-2620 Qemu: display: cirrus: potential arbitrary code execution via cirrus_bitblt_cputovideo
Summary: CVE-2017-2620 Qemu: display: cirrus: potential arbitrary code execution via c...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-2620, xsa209
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1420485 1420486 1420487 1420488 1420489 1420490 1420492 1420493 1420494 1420495 1420496 1420497 1420498 1420499 1420500 1420501 1420502 1425419 1425420
Blocks: 1420460
TreeView+ depends on / blocked
 
Reported: 2017-02-08 19:55 UTC by Prasad Pandit
Modified: 2021-02-17 02:36 UTC (History)
24 users (show)

Fixed In Version: qemu 2.8
Doc Type: If docs needed, set a value
Doc Text:
Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.
Clone Of:
Environment:
Last Closed: 2019-06-08 03:07:23 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:0328 0 normal SHIPPED_LIVE Important: qemu-kvm-rhev security update 2017-02-28 04:12:53 UTC
Red Hat Product Errata RHSA-2017:0329 0 normal SHIPPED_LIVE Important: qemu-kvm-rhev security update 2017-02-28 04:12:47 UTC
Red Hat Product Errata RHSA-2017:0330 0 normal SHIPPED_LIVE Important: qemu-kvm-rhev security update 2017-02-28 04:12:41 UTC
Red Hat Product Errata RHSA-2017:0331 0 normal SHIPPED_LIVE Important: qemu-kvm-rhev security update 2017-02-28 04:12:35 UTC
Red Hat Product Errata RHSA-2017:0332 0 normal SHIPPED_LIVE Important: qemu-kvm-rhev security update 2017-02-28 04:12:29 UTC
Red Hat Product Errata RHSA-2017:0333 0 normal SHIPPED_LIVE Important: qemu-kvm-rhev security update 2017-02-28 04:12:23 UTC
Red Hat Product Errata RHSA-2017:0334 0 normal SHIPPED_LIVE Important: qemu-kvm-rhev security update 2017-02-28 04:12:16 UTC
Red Hat Product Errata RHSA-2017:0350 0 normal SHIPPED_LIVE Important: qemu-kvm-rhev security and bug fix update 2017-03-01 12:59:14 UTC
Red Hat Product Errata RHSA-2017:0351 0 normal SHIPPED_LIVE Important: qemu-kvm-rhev security update 2017-03-01 12:59:05 UTC
Red Hat Product Errata RHSA-2017:0352 0 normal SHIPPED_LIVE Important: qemu-kvm security update 2017-03-01 14:40:28 UTC
Red Hat Product Errata RHSA-2017:0396 0 normal SHIPPED_LIVE Important: qemu-kvm security and bug fix update 2017-03-02 22:07:28 UTC
Red Hat Product Errata RHSA-2017:0454 0 normal SHIPPED_LIVE Important: kvm security update 2017-03-07 16:02:09 UTC

Description Prasad Pandit 2017-02-08 19:55:23 UTC 
Quick emulator(Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is
vulnerable to an out-of-bounds access issue. It could occur while copying
VGA data in cirrus_bitblt_cputovideo.

A privileged user inside guest could use this flaw to crash the Qemu process
resulting in DoS OR potentially execute arbitrary code on the host with
privileges of Qemu process on the host.

Upstream patch
--------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg04700.html

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2017/02/21/1
Comment 7 Prasad Pandit 2017-02-21 12:08:30 UTC 
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1425420]
Comment 8 Prasad Pandit 2017-02-21 12:08:44 UTC 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1425419]
Comment 9 Adam Mariš 2017-02-22 16:03:05 UTC 
External References:

https://xenbits.xen.org/xsa/advisory-209.html
Comment 10 errata-xmlrpc 2017-02-27 23:14:45 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6

Via RHSA-2017:0334 https://rhn.redhat.com/errata/RHSA-2017-0334.html
Comment 11 errata-xmlrpc 2017-02-27 23:16:02 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7

Via RHSA-2017:0333 https://rhn.redhat.com/errata/RHSA-2017-0333.html
Comment 12 errata-xmlrpc 2017-02-27 23:17:20 UTC 
This issue has been addressed in the following products:

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

Via RHSA-2017:0332 https://rhn.redhat.com/errata/RHSA-2017-0332.html
Comment 13 errata-xmlrpc 2017-02-27 23:18:37 UTC 
This issue has been addressed in the following products:

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

Via RHSA-2017:0331 https://rhn.redhat.com/errata/RHSA-2017-0331.html
Comment 14 errata-xmlrpc 2017-02-27 23:20:01 UTC 
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 8.0 (Liberty)

Via RHSA-2017:0330 https://rhn.redhat.com/errata/RHSA-2017-0330.html
Comment 15 errata-xmlrpc 2017-02-27 23:21:24 UTC 
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 9.0 (Mitaka)

Via RHSA-2017:0329 https://rhn.redhat.com/errata/RHSA-2017-0329.html
Comment 16 errata-xmlrpc 2017-02-27 23:22:36 UTC 
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 10.0 (Newton)

Via RHSA-2017:0328 https://rhn.redhat.com/errata/RHSA-2017-0328.html
Comment 17 errata-xmlrpc 2017-03-01 07:59:29 UTC 
This issue has been addressed in the following products:

  RHEV 3.X Hypervisor and Agents for RHEL-6

Via RHSA-2017:0351 https://rhn.redhat.com/errata/RHSA-2017-0351.html
Comment 18 errata-xmlrpc 2017-03-01 08:02:35 UTC 
This issue has been addressed in the following products:

  RHEV 3.X Hypervisor and Agents for RHEL-7
  RHEV 4.X RHEV-H and Agents for RHEL-7

Via RHSA-2017:0350 https://rhn.redhat.com/errata/RHSA-2017-0350.html
Comment 19 errata-xmlrpc 2017-03-01 09:40:40 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2017:0352 https://rhn.redhat.com/errata/RHSA-2017-0352.html
Comment 20 errata-xmlrpc 2017-03-02 17:29:20 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:0396 https://rhn.redhat.com/errata/RHSA-2017-0396.html
Comment 21 errata-xmlrpc 2017-03-07 11:02:47 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5

Via RHSA-2017:0454 https://rhn.redhat.com/errata/RHSA-2017-0454.html
Note You need to log in before you can comment on or make changes to this bug.