What’s Vulnerable › Vulnerabilities

CVE-2020-11869

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-04-27 · updated 2026-06-17
• Weakness: CWE-190

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.

Affected products

• QEMU: from 4.0.1 through 4.2.0

References

• http://www.openwall.com/lists/oss-security/2020/04/24/2
• https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ac2071c3791b67fc7af78b8ceb320c01ca1b5df7
• https://usn.ubuntu.com/4372-1/
• http://www.openwall.com/lists/oss-security/2020/04/24/2
• https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ac2071c3791b67fc7af78b8ceb320c01ca1b5df7
• https://usn.ubuntu.com/4372-1/

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