CVE-2016-9846 Information

Description

QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue. It could occur while updating the cursor data in update_cursor_data_virgl. A guest user/process could use this flaw to leak host memory bytes resulting in DoS for a host.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Reference

http://www.openwall.com/lists/oss-security/2016/12/05/18 http://www.openwall.com/lists/oss-security/2016/12/05/23 http://www.securityfocus.com/bid/94765 https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg00029.html https://security.gentoo.org/glsa/201701-49

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5