oss-security - CVE-2017-6505 Qemu: usb: an infinite loop issue in ohci_service_ed

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Message-ID: <alpine.LFD.2.20.1703062349510.6862@wniryva>
Date: Mon, 6 Mar 2017 23:51:41 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: Li Qiang <liqiang6-s@....cn>
Subject: CVE-2017-6505 Qemu: usb: an infinite loop issue in
 ohci_service_ed_list

   Hello,

Quick Emulator built with the USB OHCI Emulation support is vulnerable to an 
infinite loop issue. It could occur while processing an endpoint list 
descriptor in ohci_service_ed_list().

A guest user/process could use this flaw to crash Qemu process resulting in 
DoS.

Upstream patch:
---------------
   -> http://git.qemu-project.org/?p=qemu.git;a=commitdiff;h=95ed56939eb2eaa4e2f349fe6dcd13ca4edfd8fb

Reference:
----------
   -> https://bugzilla.redhat.com/show_bug.cgi?id=1429432

This issue was reported by Li Qiang of 360.cn Inc.

'CVE-2017-6505' allocated via -> http://cveform.mitre.org/

Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F

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