CVE-2016-6490

MEDIUM
4.4
CVSS Score
Published: December 10, 2016 at 12:00 AM UTC
Updated: June 17, 2026 at 12:51 AM UTC
1 product affected across 1 vendorQEMU

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Severity
MEDIUM4.4
Exploit prediction
EPSS 0.4%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 2.6.22.7.0 rc0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

Mailing Listx_refsource_MLISTThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/07/28/4
Mailing Listx_refsource_MLISTThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/07/28/9
Mailing Listx_refsource_MLISTPatchThird Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2016-07/msg06246.html
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
https://security.gentoo.org/glsa/201609-01

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120

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