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Bug 573280 (CVE-2016-2197) - <app-emulation/qemu-2.5.0-r2: ide: ahci null pointer dereference when using FIS CLB engines (CVE-2016-2197)
Summary: <app-emulation/qemu-2.5.0-r2: ide: ahci null pointer dereference when using F...
Status: RESOLVED FIXED
Alias: CVE-2016-2197
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor
Assignee: Gentoo Security
URL: http://www.openwall.com/lists/oss-sec...
Whiteboard: B3 [glsa cve]
Keywords:
Depends on: 578044
Blocks:
  Show dependency tree
 
Reported: 2016-01-29 08:14 UTC by Agostino Sarubbo
Modified: 2016-04-02 18:28 UTC (History)
1 user (show)

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Package list:
Runtime testing required: ---

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Description Agostino Sarubbo gentoo-dev 2016-01-29 08:14:40 UTC 
From ${URL} :

Qemu emulator built with an IDE AHCI emulation support is vulnerable to a null 
pointer dereference flaw. It occurs while unmapping the Frame Information 
Structure(FIS) & Command List Block(CLB) entries.

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

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg05742.html

Reference:
----------
   -> https://bugzilla.redhat.com/show_bug.cgi?id=1302057

This issue was discovered by Mr Zuozhi Fzz of Alibaba Inc.


@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 05:26:06 UTC 
this is in qemu-2.5.0-r2 and is fine for stable
Comment 3 Aaron Bauman (RETIRED) gentoo-dev 2016-03-23 06:14:20 UTC 
Added to existing GLSA.
Comment 4 Yury German Gentoo Infrastructure gentoo-dev 2016-04-02 17:21:47 UTC 
Clean as part of bug #567420
Comment 5 GLSAMaker/CVETool Bot gentoo-dev 2016-04-02 18:28:01 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).