QEMU, through version 2.10 and through version 3.1.0, is vulnerable to an out-of-bounds read of up to 128 bytes in the hw/i2c/i2c-ddc.c:i2c_ddc() function. A local attacker with permission to execute i2c commands could exploit this to read stack memory of the qemu process on the host.
Exploitability
AV:LAC:LPR:HUI:NScope
S:UImpact
C:HI:NA:N4.4/CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:NMemory Safety