CVE-2016-4439
Qemu: scsi: esp: OOB write while writing to 's->cmdbuf' in esp_reg_write
Severity
ModerateRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · May 19, 2016
Updated · November 21, 2025
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 score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 4AV:A/AC:H/Au:S/C:P/I:P/A:P
CWE-122 · Heap-based Buffer Overflow