CVE-2016-6490

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.

Category

4.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.08%
Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2016/07/28/4 third party advisory mailing list
http://www.openwall.com/lists/oss-security/2016/07/28/9 third party advisory mailing list
https://security.gentoo.org/glsa/201609-01 third party advisory vendor advisory
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=1e7aed70144b4673fc26e73062064b6724795e5f
https://lists.gnu.org/archive/html/qemu-devel/2016-07/msg06246.html mailing list third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2016-6490?
CVE-2016-6490 has been scored as a medium severity vulnerability.
How to fix CVE-2016-6490?
To fix CVE-2016-6490, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-6490 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-6490 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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