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Bug 1339155 - (CVE-2016-4964) CVE-2016-4964 Qemu: scsi: mptsas infinite loop in mptsas_fetch_requests
CVE-2016-4964 Qemu: scsi: mptsas infinite loop in mptsas_fetch_requests
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20160524,reported=2...
: Security
Depends On: 1339157
Blocks: 1339119
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Reported: 2016-05-24 05:16 EDT by Prasad J Pandit
Modified: 2018-07-18 10:54 EDT (History)
34 users (show)

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Description Prasad J Pandit 2016-05-24 05:16:13 EDT 
Quick Emulator(Qemu) built with the LSI SAS1068 Host Bus Adapter emulation
support is vulnerable to an infinite loop issue. It could occur while fetching
new requests in mptsas_fetch_requests().

A privileged user inside guest could use this flaw to consume excessive host
resources or crash the Qemu process resulting in DoS.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg04027.html

Reference:
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  -> http://www.openwall.com/lists/oss-security/2016/05/24/4
Comment 1 Prasad J Pandit 2016-05-24 05:17:30 EDT 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1339157]
Comment 2 Prasad J Pandit 2016-05-24 08:30:46 EDT 
Acknowledgments:

Name: Li Qiang (Qihoo 360 Inc.)
Comment 3 Andrej Nemec 2016-05-24 10:08:56 EDT 
CVE assignment via:

http://seclists.org/oss-sec/2016/q2/399
Comment 4 Fedora Update System 2016-06-25 15:24:13 EDT 
qemu-2.6.0-4.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
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