The (1) fw_cfg_write and (2) fw_cfg_read functions in hw/nvram/fw_cfg.c in QEMU before 2.4, when built with the Firmware Configuration device emulation support, allow guest OS users with the CAP_SYS_RAWIO privilege to cause a denial of service (out-of-bounds read or write access and process crash) or possibly execute arbitrary code via an invalid current entry value in a firmware configuration.
2016-04-07T19:59:02.480
2025-04-12T10:46:40.837
Deferred
CVSSv3.0: 8.1 (HIGH)
AV:L/AC:M/Au:N/C:C/I:C/A:C
3.4
10.0
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Application | redhat | openstack | 5.0 | Yes |
Operating System | oracle | linux | 6 | Yes |
Operating System | oracle | linux | 7 | Yes |
Application | qemu | qemu | ≤ 2.3.0 | Yes |