CVE & CISA-KEV Catalog

CVE-2018-10839

MEDIUMEPSS 86th pctl
6.5
CVSS v3
NVD

Description

Qemu emulator <= 3.0.0 built with the NE2000 NIC emulation support is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use this flaw to crash the Qemu process resulting in DoS.

CWE-121Stack-based Buffer OverflowCWE-190Integer Overflow

How to fix

Remediation Available
qemuDebian
Fixed in:1:3.1+dfsg-1CVE-2018-10839
Fixed in:1:3.1+dfsg-1CVE-2018-10839
Fixed in:1:3.1+dfsg-1CVE-2018-10839
Fixed in:1:3.1+dfsg-1CVE-2018-10839
qemuUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.44USN-3826-1
Fixed in:1:2.5+dfsg-5ubuntu10.33USN-3826-1
Fixed in:1:2.11+dfsg-1ubuntu7.8USN-3826-1
qemu-systemUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.44USN-3826-1
Fixed in:1:2.5+dfsg-5ubuntu10.33USN-3826-1
Fixed in:1:2.11+dfsg-1ubuntu7.8USN-3826-1
qemu-system-aarch64Ubuntu
Fixed in:2.0.0+dfsg-2ubuntu1.44USN-3826-1
Fixed in:1:2.5+dfsg-5ubuntu10.33USN-3826-1
qemu-system-armUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.44USN-3826-1
Fixed in:1:2.5+dfsg-5ubuntu10.33USN-3826-1
Fixed in:1:2.11+dfsg-1ubuntu7.8USN-3826-1
qemu-system-mipsUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.44USN-3826-1
Fixed in:1:2.5+dfsg-5ubuntu10.33USN-3826-1
Fixed in:1:2.11+dfsg-1ubuntu7.8USN-3826-1
qemu-system-miscUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.44USN-3826-1
Fixed in:1:2.5+dfsg-5ubuntu10.33USN-3826-1
Fixed in:1:2.11+dfsg-1ubuntu7.8USN-3826-1
qemu-system-ppcUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.44USN-3826-1
Fixed in:1:2.5+dfsg-5ubuntu10.33USN-3826-1
Fixed in:1:2.11+dfsg-1ubuntu7.8USN-3826-1
qemu-system-s390xUbuntu
Fixed in:1:2.5+dfsg-5ubuntu10.33USN-3826-1
Fixed in:1:2.11+dfsg-1ubuntu7.8USN-3826-1
qemu-system-sparcUbuntu
Fixed in:2.0.0+dfsg-2ubuntu1.44USN-3826-1
Fixed in:1:2.5+dfsg-5ubuntu10.33USN-3826-1
Fixed in:1:2.11+dfsg-1ubuntu7.8USN-3826-1
qemu-system-x86Ubuntu
Fixed in:2.0.0+dfsg-2ubuntu1.44USN-3826-1
Fixed in:1:2.5+dfsg-5ubuntu10.33USN-3826-1
Fixed in:1:2.11+dfsg-1ubuntu7.8USN-3826-1

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 VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityLow
AvailabilityHigh

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

Exploit Intelligence

3.17%probability of exploitation in 30 days
86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

References

Vendor Advisory1
Other references1

Related Vulnerabilities

Other CWE-121 (Stack-based Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2025-22457Critical9.0100%KEV + RansomFix
CVE-2025-0282Critical9.0100%KEV + Ransom-
CVE-2021-20038Critical9.8100%KEV + Ransom-
CVE-2009-0927High8.897%KEVFix
CVE-2020-10924High8.887%--
CVE-2022-20705Critical10.080%--
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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 2024-11-21.