CVE & CISA-KEV Catalog

CVE-2018-12617

HIGHEPSS 98th pctl
7.5
CVSS v3
NVD

Description

qmp_guest_file_read in qga/commands-posix.c and qga/commands-win32.c in qemu-ga (aka QEMU Guest Agent) in QEMU 2.12.50 has an integer overflow causing a g_malloc0() call to trigger a segmentation fault when trying to allocate a large memory chunk. The vulnerability can be exploited by sending a crafted QMP command (including guest-file-read with a large count value) to the agent via the listening socket.

CWE-190Integer Overflow

How to fix

Remediation Available
qemuDebian
Fixed in:1:3.1+dfsg-1CVE-2018-12617
Fixed in:1:3.1+dfsg-1CVE-2018-12617
Fixed in:1:3.1+dfsg-1CVE-2018-12617
Fixed in:1:3.1+dfsg-1CVE-2018-12617
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

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

25.35%probability of exploitation in 30 days
98thpercentile

Very high risk: more likely to be exploited than 98% 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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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.