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Vulnerability Details : 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 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.
Publish Date : 2016-05-20 Last Update Date : 2018-12-01
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- CVSS Scores & Vulnerability Types

CVSS Score
4.6
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceExecute CodeOverflow
CWE ID 119

- Products Affected By CVE-2016-4439

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 12.04 ~~lts~~~ Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 14.04 ~~lts~~~ Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 16.04 ~~lts~~~ Version Details Vulnerabilities
4 Application Qemu Qemu - Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 3
Qemu Qemu 1

- References For CVE-2016-4439

https://security.gentoo.org/glsa/201609-01
GENTOO GLSA-201609-01
https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03273.html
MLIST [qemu-devel] 20160519 [PATCH 1/2] scsi: check command buffer length before write(CVE-2016-4439)
http://www.ubuntu.com/usn/USN-3047-1
UBUNTU USN-3047-1
http://www.ubuntu.com/usn/USN-3047-2
UBUNTU USN-3047-2
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
MLIST [debian-lts-announce] 20181130 [SECURITY] [DLA 1599-1] qemu security update
https://bugzilla.redhat.com/show_bug.cgi?id=1337502 CONFIRM
http://www.securityfocus.com/bid/90760
BID 90760 QEMU CVE-2016-4439 Remote Code Execution Vulnerability Release Date:2016-10-28
http://www.openwall.com/lists/oss-security/2016/05/19/3
MLIST [oss-security] 20160519 CVE-2016-4439 Qemu: scsi: esp: OOB write while writing to 's->cmdbuf' in esp_reg_write

- Metasploit Modules Related To CVE-2016-4439

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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