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Bug 572454

Summary: <app-emulation/qemu-2.5.0-r2: usb ehci out-of-bounds read in ehci_process_itd
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=1299455
Whiteboard: B3 [glsa]
Package list:
Runtime testing required: ---
Bug Depends on: 578044    
Bug Blocks:    

Description Agostino Sarubbo gentoo-dev 2016-01-20 15:42:23 UTC
From ${URL} :

Qemu emulator built with the USB EHCI emulation support is vulnerable to an information leakage 
flaw. It could occur while processing isochronous transfer descriptors(iTD), with buffer page 
select(PG) index that falls beyond buffer page array area.

A privileged user inside guest could use this flaw to leak qemu memory bytes.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg03604.html


@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 2 SpanKY gentoo-dev 2016-03-23 05:26:03 UTC
this is in qemu-2.5.0-r2 and is fine for stable
Comment 3 Aaron Bauman (RETIRED) gentoo-dev 2016-03-23 06:13:57 UTC
Added to existing GLSA.
Comment 4 Yury German Gentoo Infrastructure gentoo-dev 2016-04-02 17:21:29 UTC
Clean as part of bug #567420
Comment 5 GLSAMaker/CVETool Bot gentoo-dev 2016-04-02 18:27:53 UTC
This issue was resolved and addressed in
 GLSA 201604-01 at https://security.gentoo.org/glsa/201604-01
by GLSA coordinator Yury German (BlueKnight).