CVE-2016-9104: n/a vulnerability

CVE-2016-9104: Multiple integer overflows in the (1) v9fs_xattr_read and (2) v9fs_xattr_write functions in hw/9pfs/9p.c in...

Multiple integer overflows in the (1) v9fs_xattr_read and (2) v9fs_xattr_write functions in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allow local guest OS administrators to cause a denial of service (QEMU process crash) via a crafted offset, which triggers an out-of-bounds access.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 02:42 UTC (UTC+00:00)

Security readout for executives and security teams

This QEMU bug can let an administrator inside a guest virtual machine crash the QEMU process when 9pfs extended attributes are used. The likely business impact is denial of service for affected virtual machines, not confirmed data theft or host takeover. Exposure is most likely on systems running vulnerable QEMU builds with 9pfs, also known as virtio-9p, enabled for guest file sharing. If 9pfs is not used, practical exposure appears limited based on the provided sources. Treat as a targeted virtualization availability issue. Prioritize patching where QEMU runs untrusted guest workloads or where a VM crash would disrupt production services. Lower urgency is reasonable for isolated, trusted, or non-9pfs deployments. Mitigation focus: Apply QEMU security updates from the relevant OS or virtualization vendor.; Review Gentoo, openSUSE, Debian, or upstream QEMU guidance for fixed packages.; Disable or avoid 9pfs shared filesystem features where they are not required..

Prepared: Jun 13, 2026, 13:16 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 9, 2016, 22:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
GLSA-201611-11CVE reference · vendor-advisory, x_refsource_GENTOO
[debian-lts-announce] 20181130 [SECURITY] [DLA 1599-1] qemu security updateCVE reference · mailing-list, x_refsource_MLIST
[qemu-devel] 20161013 Re: [PATCH v3 3/3] 9pfs: fix integer overflow issue in xattr read/writeCVE reference · mailing-list, x_refsource_MLIST

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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