CVE-2016-1714

Publication date 12 January 2016

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.1 · High

Score breakdown

Description

The (1) fw_cfg_write and (2) fw_cfg_read functions in hw/nvram/fw_cfg.c in QEMU before 2.4, when built with the Firmware Configuration device emulation support, allow guest OS users with the CAP_SYS_RAWIO privilege to cause a denial of service (out-of-bounds read or write access and process crash) or possibly execute arbitrary code via an invalid current entry value in a firmware configuration.

Read the notes from the security team

Status

Package Ubuntu Release Status
qemu 15.10 wily
Fixed 1:2.3+dfsg-5ubuntu9.2
15.04 vivid Ignored end of life
14.04 LTS trusty
Fixed 2.0.0+dfsg-2ubuntu1.22
12.04 LTS precise Not in release
qemu-kvm 15.10 wily Not in release
15.04 vivid Not in release
14.04 LTS trusty Not in release
12.04 LTS precise
Fixed 1.0+noroms-0ubuntu14.27

Notes

sbeattie

affects qemu 2.3 and earlier

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
qemu

Severity score breakdown

Parameter Value
Base score 8.1 · High
Attack vector Local
Attack complexity High
Privileges required None
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references