OracleVM 3.4 : xen (OVMSA-2017-0116)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote OracleVM host is missing one or more security updates.

Description :

The remote OracleVM system is missing necessary patches to address
critical security updates :

- BUILDINFO: xen
commit=74b662e79bc874fe8ad8a93d2891e6569c380004

- BUILDINFO: QEMU upstream
commit=8bff6989bd0bafcc0ddf859c23ce6a2ff21a80ff

- BUILDINFO: QEMU traditional
commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba

- BUILDINFO: IPXE
commit=9a93db3f0947484e30e753bbd61a10b17336e20e

- BUILDINFO: SeaBIOS
commit=7d9cbe613694924921ed1a6f8947d711c5832eee

- gnttab: __gnttab_unmap_common_complete is all-or-nothing
(Jan Beulich) [Orabug: 26288614]

- gnttab: correct logic to get page references during map
requests (George Dunlap) [Orabug: 26288614]

- gnttab: never create host mapping unless asked to (Jan
Beulich)

- gnttab: Fix handling of dev_bus_addr during unmap
(George Dunlap)

- x86/shadow: Hold references for the duration of emulated
writes (Andrew Cooper) [Orabug: 26288568]

- x86/mm: disallow page stealing from HVM domains (Jan
Beulich)

- guest_physmap_remove_page needs its return value checked
(Jan Beulich) [Orabug: 26288602]

- xen/memory: Fix return value handing of
guest_remove_page (Andrew Cooper) [Orabug: 26288602]

- evtchn: avoid NULL derefs (Jan Beulich) [Orabug:
26288583]

- gnttab: correct maptrack table accesses (Jan Beulich)
[Orabug: 26288557]

- gnttab: Avoid potential double-put of maptrack entry
(George Dunlap)

- gnttab: fix unmap pin accounting race (Jan Beulich)
[Orabug: 26288557]

- IOMMU: handle IOMMU mapping and unmapping failures (Quan
Xu) [Orabug: 26288557]

- xen/disk: don't leak stack data via response ring (Jan
Beulich)

- BUILDINFO: xen
commit=7b45c3eb48a884f56f072a97a9a8da4d0b1077ed

- BUILDINFO: QEMU upstream
commit=44c5f0a55d9a73e592426c33ce5705c969681955

- BUILDINFO: QEMU traditional
commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba

- BUILDINFO: IPXE
commit=9a93db3f0947484e30e753bbd61a10b17336e20e

- BUILDINFO: SeaBIOS
commit=7d9cbe613694924921ed1a6f8947d711c5832eee

- livepatch: Wrong usage of spinlock on debug console.
(Konrad Rzeszutek Wilk) [Orabug: 26248311]

- BUILDINFO: xen
commit=40e21e7aea2b8bbc991346c3f516dfac4f94affe

- BUILDINFO: QEMU upstream
commit=44c5f0a55d9a73e592426c33ce5705c969681955

- BUILDINFO: QEMU traditional
commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba

- BUILDINFO: IPXE
commit=9a93db3f0947484e30e753bbd61a10b17336e20e

- BUILDINFO: SeaBIOS
commit=7d9cbe613694924921ed1a6f8947d711c5832eee

- x86/do_invalid_op should use is_active_kernel_text
rather than having its (Konrad Rzeszutek Wilk) [Orabug:
26129273]

- BUILDINFO: xen
commit=0eadc919cf32139e5565e0d869ed09f35c0a3212

- BUILDINFO: QEMU upstream
commit=44c5f0a55d9a73e592426c33ce5705c969681955

- BUILDINFO: QEMU traditional
commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba

- BUILDINFO: IPXE
commit=9a93db3f0947484e30e753bbd61a10b17336e20e

- BUILDINFO: SeaBIOS
commit=7d9cbe613694924921ed1a6f8947d711c5832eee

- kexec: Add spinlock for the whole hypercall. (Konrad
Rzeszutek Wilk)

- kexec: clear kexec_image slot when unloading kexec image
(Bhavesh Davda) [Orabug: 25861742]

- BUILDINFO: xen
commit=8b90d66cd941599d50ee80e14fd144e337814bf6

- BUILDINFO: QEMU upstream
commit=44c5f0a55d9a73e592426c33ce5705c969681955

- BUILDINFO: QEMU traditional
commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba

- BUILDINFO: IPXE
commit=9a93db3f0947484e30e753bbd61a10b17336e20e

- BUILDINFO: SeaBIOS
commit=7d9cbe613694924921ed1a6f8947d711c5832eee

- x86: correct create_bounce_frame (tagged with CVE
number) (Boris Ostrovsky) [Orabug: 25927739]
(CVE-2017-8905)

- x86: discard type information when stealing pages
(tagged with CVE number) (Boris Ostrovsky) [Orabug:
25927669] (CVE-2017-8904)

- multicall: deal with early exit conditions (tagged with
CVE number) (Boris Ostrovsky) [Orabug: 25927592]
(CVE-2017-8903)

- BUILDINFO: xen
commit=583dedab5ceddbae4d0384de0ade8feeee75f78c

- BUILDINFO: QEMU upstream
commit=fcd17fdf18b95a9e408acc84f6d2b37cf3fc0335

- BUILDINFO: QEMU traditional
commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba

- BUILDINFO: IPXE
commit=9a93db3f0947484e30e753bbd61a10b17336e20e

- BUILDINFO: SeaBIOS
commit=7d9cbe613694924921ed1a6f8947d711c5832eee

- tools/libxc: Set max_elem to zero in
xc_lockprof_query_number (Boris Ostrovsky) [Orabug:
26020611]

See also :

https://oss.oracle.com/pipermail/oraclevm-errata/2017-June/000744.html

Solution :

Update the affected xen / xen-tools packages.

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 6.0
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: OracleVM Local Security Checks

Nessus Plugin ID: 101195 ()

Bugtraq ID:

CVE ID: CVE-2017-8903
CVE-2017-8904
CVE-2017-8905

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