Medium severity · published May 20, 2016
CVE-2016-4439
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…
6.7
CVSS
0.5%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0 · source: NVD
QE
Qemu · Qemu
through 2.6.0 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 16.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-4439
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-4439
Mailing List
http://www.openwall.com/lists/oss-security/2016/05/19/3
Third Party Advisory
http://www.securityfocus.com/bid/90760
Third Party Advisory
http://www.ubuntu.com/usn/USN-3047-1
Third Party Advisory
http://www.ubuntu.com/usn/USN-3047-2
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1337502
Mailing List
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
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