Home/CVE/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
CVE

CVE-2016-1714

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

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.

HIGH · CVSS 8.1 EPSS 0.00343
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules9 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

3
redhat openstackall versions
oracle linuxall versions
qemu<= 2.3.0
◈

Sigma Hunt Rules

9
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productcriticalLinux Reverse Shell Indicator
producthighCommunication To LocaltoNet Tunneling Service Initiated - Linux
producthighPotentially Suspicious Malware Callback Communication - Linux
producthighLinux Crypto Mining Pool Connections
producthighCommunication To Ngrok Tunneling Service - Linux
producthighLinux Crypto Mining Indicators
▣

Scoring & Timeline

8.1
HIGH · CVSS v3.0 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD07 Apr 2016 · 07:59 PM
CVSS VectorCVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
⚑

Vendor Advisories

20
suse-csafopenSUSE-SU-2024:10196-1
suse-csafopenSUSE-SU-2024:11287-1
suse-csafSUSE-SU-2016:1785-1
suse-csafSUSE-SU-2016:1745-1
suse-csafSUSE-SU-2016:1703-1
🔗

References & Sources

19
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://rhn.redhat.com/errata/RHSA-2016-0081.html
http://rhn.redhat.com/errata/RHSA-2016-0082.html
http://rhn.redhat.com/errata/RHSA-2016-0083.html
http://rhn.redhat.com/errata/RHSA-2016-0084.html
http://rhn.redhat.com/errata/RHSA-2016-0085.htmlIssue TrackingThird Party AdvisoryVDB Entry
http://rhn.redhat.com/errata/RHSA-2016-0086.html
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