Home/CVE/Race condition in QEMU in Xen allows local x86 HVM guest OS administrators to gain privileges by changing certain data o
CVE

CVE-2016-9381

Race condition in QEMU in Xen allows local x86 HVM guest OS administrators to gain privileges by changing certain data o

Race condition in QEMU in Xen allows local x86 HVM guest OS administrators to gain privileges by changing certain data on shared rings, aka a "double fetch" vulnerability.

HIGH · CVSS 7.5 EPSS 0.00105
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
▤

Affected Products & Versions

3
qemu<= 2.7.1
qemuall versions
citrix xenserverall versions
◈

Sigma Hunt Rules

1
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.
productmediumPotentially Suspicious Usage Of Qemu
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
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 NVD23 Jan 2017 · 09:59 PM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
⚑

Vendor Advisories

9
suse-csafopenSUSE-SU-2024:11520-1
usnUSN-3261-1
suse-csafSUSE-SU-2017:0127-1
suse-csafSUSE-SU-2016:3273-1
suse-csafSUSE-SU-2016:3174-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/94476Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037344Third Party AdvisoryVDB Entry
http://xenbits.xen.org/xsa/advisory-197.htmlThird Party Advisory
https://security.gentoo.org/glsa/201612-56Third Party Advisory
https://support.citrix.com/article/CTX218775Third Party Advisory
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