4.4med

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 o…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
4.4
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 34%
Public exploits
0
none known

Summary

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.

Exploit prediction (EPSS)

0.39% probability of exploitation in the next 30 days, higher than 34% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.14.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD2.02.1AV:L/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

  • openwall.com /lists/oss-security/2016/07/28/4 · mailing-list, x_refsource_MLIST, x_transferred
  • openwall.com /lists/oss-security/2016/07/28/9 · mailing-list, x_refsource_MLIST, x_transferred
  • security.gentoo.org /glsa/201609-01 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • git.qemu.org /?p=qemu.git%3Ba=commit%3Bh=1e7aed70144b4673fc26e73062064b6724795e5f · x_refsource_CONFIRM, x_transferred
  • lists.gnu.org /archive/html/qemu-devel/2016-07/msg06246.html · mailing-list, x_refsource_MLIST, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.