CVE-2020-12829 (NVD)

2020-08-31

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.

Products Ubuntu_linux, Debian_linux, Qemu
Type Integer Overflow or Wraparound (CWE-190)
First patch - None (likely due to unavailable code)
Links https://www.debian.org/security/2020/dsa-4760
https://usn.ubuntu.com/4467-1/
https://bugzilla.redhat.com/show_bug.cgi?id=1808510