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In QEMU through 5.0.0 an integer overflow was found in the SM501 display driver implementation. This flaw occurs in the COPY_AREA macro while handling MMIO write operations through the sm501_2d_engine_write() callback. A local attacker could abuse this flaw to crash the QEMU process in sm501_2d_operation() in hw/display/sm501.c on the host resulting in a denial of service.

🗓️ 09 Sep 2020 07:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 2 Views

Integer overflow in QEMU SM501 driver COPY_AREA macro causes host DoS via MMIO writes in sm501_2d_operation.

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09 Sep 2020 07:00Current
7High risk
Vulners AI Score7
CVSS 22.1
CVSS 3.13.8
EPSS0.00117
2