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CVE-2016-4439

Date: May 20, 2016

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.

Severity Score

Related Resources (12)

https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03273.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2016-4439
https://bugzilla.redhat.com/show_bug.cgi?id=1337502
http://www.openwall.com/lists/oss-security/2016/05/19/3
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
http://www.ubuntu.com/usn/USN-3047-2
https://security-tracker.debian.org/tracker/CVE-2016-4439
http://www.ubuntu.com/usn/USN-3047-1
http://www.securityfocus.com/bid/90760
https://nvd.nist.gov/vuln/detail/CVE-2016-4439
https://security.gentoo.org/glsa/201609-01
https://www.mend.io/vulnerability-database/CVE-2016-4439

Severity Score

Weakness Type (CWE)

Buffer Errors

CWE-119

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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