CVE-2016-4439

Aliases:DEBIAN-CVE-2016-4439
Advisory lineage Upstream: 0 Downstream: 18
Modified
Published: 20 May 2016, 14:00
Last modified:06 Aug 2024, 00:32

Vulnerability Summary

Overall Risk (default)
medium
27/100
CVSS Score
6.7 MEDIUM
v3.1 (nvd)
EPSS Score
0.46% LOW
0% probability +0.15%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

20 May 2016, 14:00
Published
Vulnerability first disclosed
06 Aug 2024, 00:32
Last Modified
Vulnerability information updated

Description

The esp_reg_write function in hw/scsi/esp.c in the 53C9X Fast SCSI Controller (FSC) support in QEMU does not properly check command buffer length, which allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) or potentially execute arbitrary code on the QEMU host via unspecified vectors.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 4.6AV:L/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.46%• Percentile: 39%

Techniques & Countermeasures

  • CWE-119•Improper Restriction of Operations within the Bounds of a Memory Buffer

    The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Affected Systems

  • canonical•ubuntu_linux

    12.04 | 14.04 | 16.04

  • debian•qemu

    < 1:2.6+dfsg-2 | < 1:2.6+dfsg-2 | < 1:2.6+dfsg-2 | < 1:2.6+dfsg-2

  • debian•debian_linux

    8.0

  • qemu•qemu

    ≤ 2.6.0

References (9)