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CVE-2016-4439

MEDIUM
6.7
CVSS Score
Published: May 20, 2016 at 02:00 PM UTC
Updated: June 17, 2026 at 12:47 AM UTC
3 products affected across 3 vendorsDebian LinuxUbuntu LinuxQEMU

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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.5%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (8)

Mailing Listx_refsource_MLISTPatchThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2016/05/19/3
VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/90760
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
http://www.ubuntu.com/usn/USN-3047-1
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
http://www.ubuntu.com/usn/USN-3047-2
x_refsource_CONFIRMIssue TrackingThird Party AdvisoryVDB Entry
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1337502
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
Mailing Listx_refsource_MLISTPatchThird Party Advisory
Source: [email protected]
https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03273.html
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/201609-01

CVSS

6.7MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-119

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