OracleVM 3.4 : xen (OVMSA-2016-0102)

high Nessus Plugin ID 93395

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: 2.17

Type: local

Published: 9/9/2016

Updated: 1/4/2021

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

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

CVSS v3

Risk Factor: High

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: 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 Ease: No known exploits are available

Patch Publication Date: 9/8/2016

Vulnerability Publication Date: 9/21/2016

Reference Information

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