CVE-2016-7421

Advisory lineage Upstream: 0 Downstream: 7
Modified
Published: 10 Dec 2016, 00:00
Last modified:06 Aug 2024, 01:57

Vulnerability Summary

Overall Risk (default)
low
18/100
CVSS Score
4.4 MEDIUM
v3.1 (nvd)
EPSS Score
0.11% 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 pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging failure to limit process IO loop to the ring size.

CVSS Metrics

  • v3.1•MEDIUM•Score: 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/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: 0.11%• Percentile: 29%

Techniques & Countermeasures

  • CWE-834•Excessive Iteration

    The product performs an iteration or loop without sufficiently limiting the number of times that the loop is executed.

Affected Systems

  • debian•debian_linux

    8.0

  • qemu•qemu

    ≤ 2.7.1

References (7)