CVE & CISA-KEV Catalog

CVE-2016-6888

MEDIUM
4.4
CVSS v3
NVD

Description

Integer overflow in the net_tx_pkt_init function in hw/net/net_tx_pkt.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (QEMU process crash) via the maximum fragmentation count, which triggers an unchecked multiplication and NULL pointer dereference.

How to fix

Remediation Available
qemuDebian
Fixed in:1:2.6+dfsg-3.1CVE-2016-6888
Fixed in:1:2.6+dfsg-3.1CVE-2016-6888
Fixed in:1:2.6+dfsg-3.1CVE-2016-6888
Fixed in:1:2.6+dfsg-3.1CVE-2016-6888
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
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

0.38%probability of exploitation in 30 days
30thpercentile

Low risk: more likely to be exploited than 30% of all known CVEs.

References

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2020-16040Medium6.5100%-Fix
CVE-2019-11477High7.599%-Fix
CVE-2023-44443High7.894%-Fix
CVE-2014-0569High9.390%--
CVE-2017-3599High7.590%-Fix
CVE-2023-21716Critical9.882%-Fix
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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.