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Bug 620924 (CVE-2017-9375)

Summary: <app-emulation/qemu-2.9.0: usb: xhci infinite recursive call via xhci_kick_ep
Product: Gentoo Security Reporter: Agostino Sarubbo <ago>
Component: VulnerabilitiesAssignee: Gentoo Security <security>
Status: RESOLVED FIXED    
Severity: minor CC: qemu+disabled
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
URL: https://bugzilla.redhat.com/show_bug.cgi?id=1458744
Whiteboard: B3 [noglsa cve]
Package list:
Runtime testing required: ---

Description Agostino Sarubbo gentoo-dev 2017-06-05 15:02:55 UTC
From ${URL} :

Quick emulator(Qemu) built with the USB xHCI controller emulator support is
vulnerable to an infinite recursive call 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:
---------------
  -> http://git.qemu.org/?p=qemu.git;a=commitdiff;h=96d87bdda3919bb16f754b3d3fd1227e1f38f13c

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2017/06/05/2


@security: please check if this issue needs a GLSA.
Comment 1 Matthias Maier gentoo-dev 2017-07-26 18:56:43 UTC
This commit is already in upstream version 2.9.0.
Comment 2 Aaron Bauman (RETIRED) gentoo-dev 2017-08-08 00:03:38 UTC
GLSA Vote: No