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Bug 573314 (CVE-2016-2198) - <app-emulation/qemu-2.5.0-r2: usb: ehci null pointer dereference in ehci_caps_write (CVE-2016-2198)
Summary: <app-emulation/qemu-2.5.0-r2: usb: ehci null pointer dereference in ehci_caps...
Alias: CVE-2016-2198
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: 578044
  Show dependency tree
Reported: 2016-01-29 16:43 UTC by Agostino Sarubbo
Modified: 2016-04-02 18:28 UTC (History)
1 user (show)

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


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Description Agostino Sarubbo gentoo-dev 2016-01-29 16:43:59 UTC
From ${URL} :

Qemu emulator built with the USB EHCI emulation support is vulnerable to a 
null pointer dereference flaw. It could occur when an application attempts to 
write to EHCI capabilities registers.

A privileged user inside quest could use this flaw to crash the Qemu process 
instance 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 2 SpanKY gentoo-dev 2016-03-23 05:26:16 UTC
this is in qemu-2.5.0-r2 and is fine for stable
Comment 3 Aaron Bauman Gentoo Infrastructure gentoo-dev Security 2016-03-23 06:14:40 UTC
Added to existing GLSA.
Comment 4 Yury German Gentoo Infrastructure gentoo-dev 2016-04-02 17:22:04 UTC
Clean as part of bug #567420
Comment 5 GLSAMaker/CVETool Bot gentoo-dev 2016-04-02 18:28:09 UTC
This issue was resolved and addressed in
 GLSA 201604-01 at
by GLSA coordinator Yury German (BlueKnight).