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Bug 1384874 (CVE-2016-8667) - CVE-2016-8667 Qemu: hw: dma: divide by zero error in set_next_tick
Summary: CVE-2016-8667 Qemu: hw: dma: divide by zero error in set_next_tick
Alias: CVE-2016-8667
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1384876
TreeView+ depends on / blocked
Reported: 2016-10-14 10:37 UTC by Prasad Pandit
Modified: 2021-02-17 03:11 UTC (History)
36 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2019-06-08 03:00:08 UTC

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Description Prasad Pandit 2016-10-14 10:37:06 UTC
Quick Emulator(Qemu) built with the JAZZ RC4030 chipset emulation support is
vulnerable to a divide by zero issue. It could occur while computing its
periodic timer's next tick value.

A privileged guest user could use this flaw to crash the Qemu process instance
on the host resulting in DoS.

Upstream patch:

Comment 1 Prasad Pandit 2016-10-14 10:37:42 UTC

Name: PSIRT (Huawei Inc.)

Comment 2 Prasad Pandit 2016-10-14 10:38:43 UTC
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1384876]

Comment 3 Andrej Nemec 2016-10-17 07:18:06 UTC
CVE assignment:

Comment 4 Cole Robinson 2017-01-16 18:56:33 UTC
Still not applied. Maybe ping the patch and CC hpoussin who looks to be the last person to do actual work on that file

Comment 5 Cole Robinson 2017-03-14 19:18:26 UTC
Still not upstream, but I pinged the thread

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