OracleVM 3.4 : xen (OVMSA-2016-0102)

High Nessus Plugin ID 93395

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VPR Score: 6.7

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:
commit=a83239e012959a65503ebb44ee9c54620a9d78f5

- evtchn-fifo: prevent use after free (Boris Ostrovsky) (CVE-2016-7154)

- x86/segment: Bounds check accesses to emulation ctxt->seg_reg[] (Andrew Cooper) (CVE-2016-7094)

- x86/shadow: Avoid overflowing sh_ctxt->seg_reg[] (Andrew Cooper) (CVE-2016-7094)

- x86/32on64: don't allow recursive page tables from L3 (Jan Beulich) (CVE-2016-7092)

Solution

Update the affected xen / xen-tools packages.

See Also

http://www.nessus.org/u?c948f06e

Plugin Details

Severity: High

ID: 93395

File Name: oraclevm_OVMSA-2016-0102.nasl

Version: 2.16

Type: local

Published: 2016/09/09

Updated: 2019/09/27

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 6.7

CVSS v2.0

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 8.2

Temporal Score: 7.1

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:oracle:vm:xen, p-cpe:/a:oracle:vm:xen-tools, cpe:/o:oracle:vm_server:3.4

Required KB Items: Host/local_checks_enabled, Host/OracleVM/release, Host/OracleVM/rpm-list

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2016/09/08

Vulnerability Publication Date: 2016/09/21

Reference Information

CVE: CVE-2016-7092, CVE-2016-7094, CVE-2016-7154