CVE-2013-2016

moderate-risk

Published 2019-12-30

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.

Do I need to act?

0.07% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.8/10 High

LOCAL / LOW complexity

Affected Products (7)

Qemu

Debian Linux

Open Desktop Server

Open Enterprise Server

Affected Vendors

Novell Debian Qemu

References (18)

Mailing List http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00002.html

Exploit http://www.openwall.com/lists/oss-security/2013/04/29/5

Exploit http://www.openwall.com/lists/oss-security/2013/04/29/6

Third Party Advisory http://www.securityfocus.com/bid/59541

Third Party Advisory https://access.redhat.com/security/cve/cve-2013-2016

Exploit https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-2016

Third Party Advisory https://exchange.xforce.ibmcloud.com/vulnerabilities/83850

Patch https://github.com/qemu/qemu/commit/5f5a1318653c08e435cfa52f60b6a712815b659d

Third Party Advisory https://security-tracker.debian.org/tracker/CVE-2013-2016