Gentoo Websites Logo
Go to: Gentoo Home Documentation Forums Lists Bugs Planet Store Wiki Get Gentoo!

Bug 524200 (CVE-2014-7188)

Summary: <app-emulation/xen-{4.2.5-r1,4.3.3-r1}: Improper MSR range used for x2APIC emulation (XSA-108) (CVE-2014-7188)
Product: Gentoo Security Reporter: Tobias Heinlein (RETIRED) <keytoaster>
Component: VulnerabilitiesAssignee: Gentoo Security <security>
Severity: normal CC: chicago, matt, xen
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
Whiteboard: B2 [glsa]
Package list:
Runtime testing required: ---

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.

    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 gentoo-dev 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 <> +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:
Target keywords Both : "amd64 x86"

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 gentoo-dev 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 (
  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 gentoo-dev 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 gentoo-dev 2014-10-15 01:44:24 UTC
thanks, old version has been dropped.
Comment 10 Yury German Gentoo Infrastructure gentoo-dev 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
by GLSA coordinator Yury German (BlueKnight).