CVE & CISA-KEV Catalog

CVE-2020-11869

LOW
3.3
CVSS v3
NVD

Description

An integer overflow was found in QEMU 4.0.1 through 4.2.0 in the way it implemented ATI VGA emulation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati-2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.

How to fix

Remediation Available
qemuDebian
Fixed in:1:5.0-1CVE-2020-11869
Fixed in:1:5.0-1CVE-2020-11869
Fixed in:1:5.0-1CVE-2020-11869
Fixed in:1:5.0-1CVE-2020-11869
qemuUbuntu
Fixed in:1:2.5+dfsg-5ubuntu10.44USN-4372-1
Fixed in:1:2.11+dfsg-1ubuntu7.26USN-4372-1
Fixed in:1:4.2-3ubuntu6.1USN-4372-1
qemu-systemUbuntu
Fixed in:1:2.5+dfsg-5ubuntu10.44USN-4372-1
Fixed in:1:2.11+dfsg-1ubuntu7.26USN-4372-1
Fixed in:1:4.2-3ubuntu6.1USN-4372-1
qemu-system-aarch64Ubuntu
Fixed in:1:2.5+dfsg-5ubuntu10.44USN-4372-1
qemu-system-armUbuntu
Fixed in:1:2.5+dfsg-5ubuntu10.44USN-4372-1
Fixed in:1:2.11+dfsg-1ubuntu7.26USN-4372-1
Fixed in:1:4.2-3ubuntu6.1USN-4372-1
qemu-system-mipsUbuntu
Fixed in:1:2.5+dfsg-5ubuntu10.44USN-4372-1
Fixed in:1:2.11+dfsg-1ubuntu7.26USN-4372-1
Fixed in:1:4.2-3ubuntu6.1USN-4372-1
qemu-system-ppcUbuntu
Fixed in:1:2.5+dfsg-5ubuntu10.44USN-4372-1
Fixed in:1:2.11+dfsg-1ubuntu7.26USN-4372-1
Fixed in:1:4.2-3ubuntu6.1USN-4372-1
qemu-system-s390xUbuntu
Fixed in:1:2.5+dfsg-5ubuntu10.44USN-4372-1
Fixed in:1:2.11+dfsg-1ubuntu7.26USN-4372-1
Fixed in:1:4.2-3ubuntu6.1USN-4372-1
qemu-system-sparcUbuntu
Fixed in:1:2.5+dfsg-5ubuntu10.44USN-4372-1
Fixed in:1:2.11+dfsg-1ubuntu7.26USN-4372-1
Fixed in:1:4.2-3ubuntu6.1USN-4372-1
qemu-system-x86Ubuntu
Fixed in:1:2.5+dfsg-5ubuntu10.44USN-4372-1
Fixed in:1:2.11+dfsg-1ubuntu7.26USN-4372-1
Fixed in:1:4.2-3ubuntu6.1USN-4372-1

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 RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityLow

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

Exploit Intelligence

0.40%probability of exploitation in 30 days
32ndpercentile

Low risk: more likely to be exploited than 32% 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.