oss-security - CVE-2017-5973 Qemu: usb: infinite loop while doing control transfer in xhci_kick

Follow @Openwall on Twitter for new release announcements and other news

[<prev] [next>] [day] [month] [year] [list]

Date: Tue, 14 Feb 2017 00:45:22 +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-2017-5973 Qemu: usb: infinite loop while doing control transfer
 in xhci_kick_epctx

   Hello,

Quick emulator(Qemu) built with the USB xHCI controller emulator support is 
vulnerable to an infinite loop issue. It could occur while processing control 
transfer descriptor's sequence in xhci_kick_epctx.

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

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg01101.html

Reference:
----------
   -> https://bugzilla.redhat.com/show_bug.cgi?id=1421626

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

'CVE-2017-5973' assigned via -> https://cveform.mitre.org/

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

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.