What’s Vulnerable › Vulnerabilities

CVE-2019-20808

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-12-31 · updated 2026-06-17
• Weakness: CWE-125

Description

In QEMU 4.1.0, an out-of-bounds read flaw was found in the ATI VGA implementation. It occurs in the ati_cursor_define() routine 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: 4.1.0

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1841136
• https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=aab0e2a661b2b6bf7915c0aefe807fb60d6d9d13
• https://security.netapp.com/advisory/ntap-20210205-0003/
• https://bugzilla.redhat.com/show_bug.cgi?id=1841136
• https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=aab0e2a661b2b6bf7915c0aefe807fb60d6d9d13
• https://security.netapp.com/advisory/ntap-20210205-0003/

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