524200 – (CVE-2014-7188) <app-emulation/xen-{4.2.5-r1,4.3.3-r1}: Improper MSR range used for x2APIC emulation (XSA-108) (CVE-2014-7188)

Bug 524200 (CVE-2014-7188) - <app-emulation/xen-{4.2.5-r1,4.3.3-r1}: Improper MSR range used for x2APIC emulation (XSA-108) (CVE-2014-7188)

Summary: <app-emulation/xen-{4.2.5-r1,4.3.3-r1}: Improper MSR range used for x2APIC em...

Status:	RESOLVED FIXED

Alias:	CVE-2014-7188

Product:	Gentoo Security
Classification:	Unclassified
Component:	Vulnerabilities (show other bugs)
Hardware:	All Linux

Importance:	Normal normal with 1 vote (vote)
Assignee:	Gentoo Security

URL:	http://xenbits.xen.org/xsa/advisory-1...
Whiteboard:	B2 [glsa]
Keywords:

Depends on:
Blocks:

Reported:	2014-10-01 12:10 UTC by Tobias Heinlein (RETIRED)
Modified:	2014-12-26 18:40 UTC (History)
CC List:	3 users (show)

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

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Description Tobias Heinlein (RETIRED) gentoo-dev

2014-10-01 12:10:29 UTC

See $URL.

Comment 1 Chicago 2014-10-01 16:53:35 UTC

Also, of note -- Gentoo is absent from the pre-disclosure list.
http://www.xenproject.org/security-policy.html

    We should work to have ourselves included in order to patch Gentoo Infrastructure early and be ready to release patched ebuilds immediately after CVEs are disclosed to the public.

Comment 2 Yixun Lan archtester

2014-10-10 03:21:58 UTC

+*xen-4.4.1-r2 (10 Oct 2014)
+*xen-4.3.3-r1 (10 Oct 2014)
+*xen-4.2.5-r1 (10 Oct 2014)
+
+  10 Oct 2014; Yixun Lan <dlan@gentoo.org> +xen-4.2.5-r1.ebuild,
+  +xen-4.3.3-r1.ebuild, -xen-4.4.1-r1.ebuild, +xen-4.4.1-r2.ebuild:
+  revision bump, fix security bug 524200, 523524


Arches, please test and mark stable:
=app-emulation/xen-4.2.5-r1
=app-emulation/xen-tools-4.2.5-r1
=app-emulation/xen-pvgrub-4.2.4
Target keywords Both : "amd64 x86"

=app-emulation/xen-4.3.3-r1
=app-emulation/xen-tools-4.3.3-r1
=app-emulation/xen-pvgrub-4.3.3
Target keywords Only: "amd64"

(note, those security bugs only relevant to app-emulation/xen
but we'd like to stablereq xen ebuild in one request, so combine them all here
and changes to xen-tools are quite trivial, xen-pvgrub in tree quite long)

Comment 3 Yixun Lan archtester

2014-10-10 03:24:23 UTC

sorry, should stabilize =app-emulation/xen-pvgrub-4.2.5, not (4.2.4)

Comment 4 Tobias Heinlein (RETIRED) gentoo-dev

2014-10-13 21:56:20 UTC

You forgot to CC the arch teams. :)

Comment 5 Agostino Sarubbo gentoo-dev

2014-10-14 13:15:13 UTC

amd64 stable

Comment 6 Agostino Sarubbo gentoo-dev

2014-10-14 13:15:52 UTC

x86 stable.

Maintainer(s), please cleanup.
Security, please add it to the existing request, or file a new one.

Comment 7 GLSAMaker/CVETool Bot gentoo-dev

2014-10-15 01:26:44 UTC

CVE-2014-7188 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-7188):
  The hvm_msr_read_intercept function in arch/x86/hvm/hvm.c in Xen 4.1 through
  4.4.x uses an improper MSR range for x2APIC emulation, which allows local
  HVM guests to cause a denial of service (host crash) or read data from the
  hypervisor or other guests via unspecified vectors.

Comment 8 Yury German Gentoo Infrastructure

2014-10-15 01:28:10 UTC

Arches, Thank you for your work
Maintainer(s), please drop the vulnerable version(s).

New GLSA Request filed.

Comment 9 Yixun Lan archtester

2014-10-15 01:44:24 UTC

thanks, old version has been dropped.

Comment 10 Yury German Gentoo Infrastructure

2014-10-15 03:34:08 UTC

Maintainer(s), Thank you for cleanup!

Comment 11 GLSAMaker/CVETool Bot gentoo-dev

2014-12-26 18:40:55 UTC

This issue was resolved and addressed in
 GLSA 201412-42 at http://security.gentoo.org/glsa/glsa-201412-42.xml
by GLSA coordinator Yury German (BlueKnight).