CVE-2016-6490

MEDIUM

QEMU - DoS

Title source: llm

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 (5)

[Patch] http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=1e7aed70144b4673fc26e73062064b6724795e5f

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2016/07/28/4

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2016/07/28/9

[Patch, Third Party Advisory] https://lists.gnu.org/archive/html/qemu-devel/2016-07/msg06246.html

[Third Party Advisory] https://security.gentoo.org/glsa/201609-01

Scores

CVSS v3 4.4

EPSS 0.0008

EPSS Percentile 22.3%

Attack Vector LOCAL

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

Classification

CWE

CWE-120

Status published

Affected Products (3)

qemu/qemu < 2.6.2

qemu/qemu

n/a/n/a

Timeline

Published Dec 10, 2016

Tracked Since Feb 18, 2026