Bug 1473622 (CVE-2017-7539) - CVE-2017-7539 Qemu: qemu-nbd crashes due to undefined I/O coroutine
Summary: CVE-2017-7539 Qemu: qemu-nbd crashes due to undefined I/O coroutine
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-7539
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1467509 1473624 1473625 1473627 1473628 1473629 1473630 1473631 1473632 1473633 1473634 1473638
Blocks: 1472118 1520687
TreeView+ depends on / blocked
 
Reported: 2017-07-21 10:31 UTC by Prasad Pandit
Modified: 2021-02-17 01:52 UTC (History)
40 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
An assertion-failure flaw was found in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service.
Clone Of:
Environment:
Last Closed: 2019-06-08 03:17:20 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:2628 0 normal SHIPPED_LIVE Moderate: qemu-kvm-rhev security and bug fix update 2017-09-05 15:52:24 UTC
Red Hat Product Errata RHSA-2017:3466 0 normal SHIPPED_LIVE Moderate: qemu-kvm-rhev security and bug fix update 2017-12-15 03:11:38 UTC
Red Hat Product Errata RHSA-2017:3470 0 normal SHIPPED_LIVE Moderate: qemu-kvm-rhev security and bug fix update 2017-12-15 03:10:57 UTC
Red Hat Product Errata RHSA-2017:3471 0 normal SHIPPED_LIVE Moderate: qemu-kvm-rhev security and bug fix update 2017-12-15 03:10:12 UTC
Red Hat Product Errata RHSA-2017:3472 0 normal SHIPPED_LIVE Moderate: qemu-kvm-rhev security update 2017-12-15 03:13:26 UTC
Red Hat Product Errata RHSA-2017:3473 0 normal SHIPPED_LIVE Moderate: qemu-kvm-rhev security update 2017-12-15 03:15:13 UTC
Red Hat Product Errata RHSA-2017:3474 0 normal SHIPPED_LIVE Moderate: qemu-kvm-rhev security and bug fix update 2017-12-15 03:12:34 UTC

Description Prasad Pandit 2017-07-21 10:31:30 UTC 
Quick Emulator(Qemu) built with the Network Block Device(NBD) Server support
is vulnerable to a crash via assertion failure. It could occur if a client sent
undue data during initial connection negotiation.

A remote user/process could use this flaw to crash the qemu-nbd server
resulting in DoS.

Upstream patch:
---------------
  -> http://git.qemu.org/?p=qemu.git;a=commitdiff;h=2b0bbc4f8809c972bad134bc1a2570dbb01dea0b

Introduced by:
--------------
  -> http://git.qemu.org/?p=qemu.git;a=commitdiff;h=ff82911cd3f69f028f2537825c9720ff78bc3f19

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2017/07/21/4
Comment 1 Prasad Pandit 2017-07-21 10:33:16 UTC 
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1473625]
Comment 2 Prasad Pandit 2017-07-21 10:33:41 UTC 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1473624]
Comment 6 errata-xmlrpc 2017-09-05 11:53:49 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-2017:2628 https://access.redhat.com/errata/RHSA-2017:2628
Comment 9 errata-xmlrpc 2017-12-14 22:15:44 UTC 
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 10 errata-xmlrpc 2017-12-14 22:17:50 UTC 
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 11 errata-xmlrpc 2017-12-14 22:19:56 UTC 
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 12 errata-xmlrpc 2017-12-14 22:21:54 UTC 
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 13 errata-xmlrpc 2017-12-14 22:23:47 UTC 
This issue has been addressed in the following products:

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

Via RHSA-2017:3472 https://access.redhat.com/errata/RHSA-2017:3472
Comment 14 errata-xmlrpc 2017-12-14 22:25:37 UTC 
This issue has been addressed in the following products:

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

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