CVE & CISA-KEV Catalog

CVE-2016-8578

MEDIUM
6.0
CVSS v3
NVD

Description

The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) by sending an empty string parameter to a 9P operation.

How to fix

Remediation Available
qemuDebian
Fixed in:1:2.8+dfsg-1CVE-2016-8578
Fixed in:1:2.8+dfsg-1CVE-2016-8578
Fixed in:1:2.8+dfsg-1CVE-2016-8578
Fixed in:1:2.8+dfsg-1CVE-2016-8578
qemuUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.30USN-3125-1
Fixed in:1:2.5+dfsg-5ubuntu10.6USN-3125-1
qemu-systemUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.30USN-3125-1
Fixed in:1:2.5+dfsg-5ubuntu10.6USN-3125-1
qemu-system-aarch64Ubuntu
Fixed in:2.0.0+dfsg-2ubuntu1.30USN-3125-1
Fixed in:1:2.5+dfsg-5ubuntu10.6USN-3125-1
qemu-system-armUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.30USN-3125-1
Fixed in:1:2.5+dfsg-5ubuntu10.6USN-3125-1
qemu-system-mipsUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.30USN-3125-1
Fixed in:1:2.5+dfsg-5ubuntu10.6USN-3125-1
qemu-system-miscUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.30USN-3125-1
Fixed in:1:2.5+dfsg-5ubuntu10.6USN-3125-1
qemu-system-ppcUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.30USN-3125-1
Fixed in:1:2.5+dfsg-5ubuntu10.6USN-3125-1
qemu-system-s390xUbuntu
Fixed in:1:2.5+dfsg-5ubuntu10.6USN-3125-1
qemu-system-sparcUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.30USN-3125-1
Fixed in:1:2.5+dfsg-5ubuntu10.6USN-3125-1
qemu-system-x86Ubuntu
Fixed in:2.0.0+dfsg-2ubuntu1.30USN-3125-1
Fixed in:1:2.5+dfsg-5ubuntu10.6USN-3125-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeChanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

0.39%probability of exploitation in 30 days
31stpercentile

Low risk: more likely to be exploited than 31% of all known CVEs.

References

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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.