CVE-2016-6490

LOW

Description

The virtqueue_map_desc function in hw/virtio/virtio.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via a zero length for the descriptor buffer.

References

http://git.qemu.org/?p=qemu.git;a=commit;h=1e7aed70144b4673fc26e73062064b6724795e5f

http://www.openwall.com/lists/oss-security/2016/07/28/4

http://www.openwall.com/lists/oss-security/2016/07/28/9

https://lists.gnu.org/archive/html/qemu-devel/2016-07/msg06246.html

https://security.gentoo.org/glsa/201609-01

Details

Source: MITRE

Published: 2016-12-10

Updated: 2017-07-01

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3.0

Base Score: 4.4

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 0.8

Severity: MEDIUM