QEMU patch_instruction function Information Leakage Vulnerability (CVE-2016-4020)

QEMU patch_instruction function Information Leakage Vulnerability (CVE-2016-4020)
QEMU patch_instruction function Information Leakage Vulnerability (CVE-2016-4020)

Release date:
Updated on:

Affected Systems:

QEMU

Description:

CVE (CAN) ID: CVE-2016-4020

QEMU is an open source simulator software.

The QEMU hw/i386/kvmvapic. c/patch_instruction function does not initialize the imm32 variable. The local client OS administrator can access TPR to obtain sensitive information about the host stack memory.

<* Source: QEMU

*>

Suggestion:

Vendor patch:

QEMU
----
The vendor has released a patch to fix this security problem. Please download it from the vendor's homepage:

Https://bugzilla.redhat.com/show_bug.cgi? Id = 1313686

Http://git.qemu.org /? P = qemu. git; a = commit; h = 691a02e2ce0c413236a78dee6f2651c937b09fb0

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