CVE-2013-2016 Information

Description

A flaw was found in the way qemu v1.3.0 and later (virtio-rng) validates addresses when guest accesses the config space of a virtio device. If the virtio device has zero/small sized config space such as virtio-rng a privileged guest user could use this flaw to access the matching host’s qemu address space and thus increase their privileges on the host.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00002.html http://www.openwall.com/lists/oss-security/2013/04/29/5 http://www.openwall.com/lists/oss-security/2013/04/29/6 http://www.securityfocus.com/bid/59541 https://access.redhat.com/security/cve/cve-2013-2016 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-2016 https://exchange.xforce.ibmcloud.com/vulnerabilities/83850 https://github.com/qemu/qemu/commit/5f5a1318653c08e435cfa52f60b6a712815b659d https://security-tracker.debian.org/tracker/CVE-2013-2016

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8