OracleVM 3.2 : xen (OVMSA-2016-0178)

high Nessus Plugin ID 95796

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 :

- From: Jan Beulich Subject: x86emul: CMPXCHG8B ignores operand size prefix Otherwise besides mis-handling the instruction, the comparison failure case would result in uninitialized stack data being handed back to the guest in rDX:rAX (32 bits leaked for 32-bit guests, 96 bits for 64-bit ones). This is XSA-200.

Conflicts: xen/arch/x86/x86_emulate/x86_emulate.c

Solution

Update the affected xen / xen-devel / xen-tools packages.

See Also

http://www.nessus.org/u?c35bf899

Plugin Details

Severity: High

ID: 95796

File Name: oraclevm_OVMSA-2016-0178.nasl

Version: 3.4

Type: local

Published: 12/14/2016

Updated: 1/4/2021

Supported Sensors: Nessus

Vulnerability Information

CPE: p-cpe:/a:oracle:vm:xen, p-cpe:/a:oracle:vm:xen-devel, p-cpe:/a:oracle:vm:xen-tools, cpe:/o:oracle:vm_server:3.2

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

Patch Publication Date: 12/13/2016

Vulnerability Publication Date: 12/13/2016