CVE-2016-2197

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Summary

CVECVE-2016-2197
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-12-29 22:59:00 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionQEMU (aka Quick Emulator) built with an IDE AHCI emulation support is vulnerable to a null pointer dereference flaw. It occurs while unmapping the Frame Information Structure (FIS) and Command List Block (CLB) entries. A privileged user inside guest could use this flaw to crash the QEMU process instance resulting in DoS.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.001110000 probability, percentile 0.290760000 (date 2026-05-11)

Problem Types: CWE-476 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary2.1AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:L/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Qemu Qemu All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Re: [Qemu-devel] [PATCH v2] ide: ahci: add check before calling dma_memo af854a3a-2127-422b-91ae-364da2661108 lists.gnu.org Patch, Vendor Advisory
QEMU 'hw/ide/ahci.c' NULL Pointer Dereference Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
oss-security - CVE request Qemu: ide: ahci null pointer dereference when using FIS CLB engines af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
Bug 1302057 – CVE-2016-2197 Qemu: ide: ahci null pointer dereference when using FIS CLB engines af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking
QEMU: Multiple vulnerabilities (GLSA 201604-01) — Gentoo Security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org Third Party Advisory
oss-security - Re: CVE request Qemu: ide: ahci null pointer dereference when using FIS CLB engines af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 900063 CBL-Mariner Linux Security Update for qemu-kvm 4.2.0
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