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Bug 638506 (CVE-2017-16845)

Summary: <app-emulation/qemu-2.11.0: ps2 information leakage
Product: Gentoo Security Reporter: Francis Booth <boothf>
Component: VulnerabilitiesAssignee: Gentoo Security <security>
Status: RESOLVED FIXED    
Severity: trivial CC: qemu+disabled
Priority: Low    
Version: unspecified   
Hardware: All   
OS: Linux   
URL: https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg02946.html
Whiteboard: C4 [glsa+ cve]
Package list:
Runtime testing required: ---

Description Francis Booth 2017-11-22 20:15:45 UTC 
Quick Emulator(Qemu) built with the PS/2 keyboard and mouse emulation support along with the migration feature enabled is vulnerable to an information leakage flaw. It could occur while loading a migrated snapshot on the destination host in PS2 post_load routine.

A privileged user could use this flaw to leak destination host memory bytes.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg02982.html


~ Eleix (Security Padawan)
Comment 1 D'juan McDonald (domhnall) 2017-11-23 23:30:56 UTC 
@maintainer(s): please call for stabilization when ready, thank you. (x86,amd64)

Last patch: Thu, 16 Nov 2017 (from Upstream)

Last drop: Tue, 14 Nov 2017 via (from Gentoo)
commit https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=a65a8fa1bcac5e89c0ba154e8f9078aeef3d157f


Gentoo Security Padawan
(jmbailey/mbailey_j)
Comment 2 Larry the Git Cow gentoo-dev 2018-02-11 20:27:26 UTC 
The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=725631c3eee62d147ea634c969ab90d1c70f5612

commit 725631c3eee62d147ea634c969ab90d1c70f5612
Author:     Matthias Maier <tamiko@gentoo.org>
AuthorDate: 2018-02-11 20:16:02 +0000
Commit:     Matthias Maier <tamiko@gentoo.org>
CommitDate: 2018-02-11 20:27:01 +0000

    app-emulation/qemu: version bump to 2.11.0, important security fixes
    
     - Added slot operator for libnfs
    
     - Added patch for glibc-2.27 compatibility
    
     - Added patch for CVE-2017-16845
    
     - Backported upstream msr / spec ctrl patches:
    
       6cfbc54e89  i386: Add EPYC-IBPB CPU model
       ac96c41354  i386: Add new -IBRS versions of Intel CPU models
       1b3420e1c4  i386: Add FEAT_8000_0008_EBX CPUID feature word
       a2381f0934  i386: Add spec-ctrl CPUID bit
       a33a2cfe2f  i386: Add support for SPEC_CTRL MSR
    
     - CVEs addressed by bump:
    
       CVE-2017-17381
       CVE-2017-18030
       CVE-2017-18043
    
     - CVEs addressed by patchset:
    
       CVE-2017-15124
       CVE-2017-16845
       CVE-2018-5683
    
     - CVE-2018-5748 is a libvirt vulnerability, not a qemu issue...
    
    Bug:    https://bugs.gentoo.org/638506
    Bug:    https://bugs.gentoo.org/643432
    Bug:    https://bugs.gentoo.org/646814
    Closes: https://bugs.gentoo.org/641100
    Closes: https://bugs.gentoo.org/646568
    Closes: https://bugs.gentoo.org/646710
    Package-Manager: Portage-2.3.24, Repoman-2.3.6

 app-emulation/qemu/Manifest                        |   2 +
 .../qemu/files/qemu-2.11.0-glibc-2.27.patch        |  54 ++
 app-emulation/qemu/qemu-2.11.0.ebuild              | 803 +++++++++++++++++++++
 3 files changed, 859 insertions(+)}
Comment 3 GLSAMaker/CVETool Bot gentoo-dev 2018-04-08 23:32:08 UTC 
This issue was resolved and addressed in
 GLSA 201804-08 at https://security.gentoo.org/glsa/201804-08
by GLSA coordinator Aaron Bauman (b-man).