CVE-2016-7422

Advisory lineage Upstream: 0 Downstream: 5
Modified
Published: 10 Dec 2016, 00:00
Last modified:06 Aug 2024, 01:57

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
6 MEDIUM
v3.1 (nvd)
EPSS Score
0.09% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

10 Dec 2016, 00:00
Published
Vulnerability first disclosed
06 Aug 2024, 01:57
Last Modified
Vulnerability information updated

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 (NULL pointer dereference and QEMU process crash) via a large I/O descriptor buffer length value.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
  • v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 0.09%• Percentile: 26%

Techniques & Countermeasures

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

    The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Affected Systems

  • opensuse•leap

    42.2

  • qemu•qemu

    ≤ 2.7.1

  • redhat•openstack

    6.0 | 7.0 | 8 | 9 | 10 | 11

  • redhat•virtualization

    4.0

References (9)