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Bug 609334 (CVE-2017-5973) - <app-emulation/qemu-2.8.0-r3: usb: infinite loop while doing control transfer in xhci_kick_epctx
Summary: <app-emulation/qemu-2.8.0-r3: usb: infinite loop while doing control transfer...
Alias: CVE-2017-5973
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor (vote)
Assignee: Gentoo Security
Whiteboard: B3 [glsa cve]
Depends on: 609206
  Show dependency tree
Reported: 2017-02-14 11:56 UTC by Agostino Sarubbo
Modified: 2017-04-10 21:26 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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Description Agostino Sarubbo gentoo-dev 2017-02-14 11:56:26 UTC
From ${URL} :

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 descriptors' sequence in xhci_kick_epctx.

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

Upstream patch:


@maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.
Comment 1 Yury German Gentoo Infrastructure gentoo-dev 2017-03-28 03:31:09 UTC
Arches and Maintainer(s), Thank you for your work.
Added to an existing GLSA Request.
Comment 2 GLSAMaker/CVETool Bot gentoo-dev 2017-04-10 21:26:57 UTC
This issue was resolved and addressed in
 GLSA 201704-01 at
by GLSA coordinator Kristian Fiskerstrand (K_F).