What is CVE-2016-6490?

CVE-2016-6490 is a medium-severity vulnerability in Qemu, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 4.4/10. Published 2016-12-10.

How severe is CVE-2016-6490?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Buffer overflow in Qemu

CVE-2016-6490

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.

Vulnerability class: Buffer Overflow

EPSS: 0.004 (31.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

Affected products

Qemu — versions 2.7.0
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
secalert@redhat.com (x_refsource_CONFIRM)
secalert@redhat.com (mailing-list, x_refsource_MLIST, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2016-6490?: CVE-2016-6490 is a medium-severity vulnerability in Qemu, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 4.4/10. Published 2016-12-10.
How severe is CVE-2016-6490?: Medium severity. CVSS v3 base score is 4.4 out of 10.