A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a use-after-free issue, potentially leading to a denial of service or privilege escalation.
| Version | Score | Severity | Vector String |
|---|---|---|---|
| 3.1 | 7.5 | High | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |
| Product | Vendor | Version |
|---|---|---|
| Red Hat Enterprise Linux 7 | Red Hat | n/a |
| Red Hat Enterprise Linux 8 | Red Hat | 5.7.87 |
| Red Hat Enterprise Linux 9 | Red Hat | Windows 10 Version 1607 for 32-bit Systems |
| Red Hat Enterprise Linux 9 | Red Hat | n/a |
| Red Hat Enterprise Linux 6 | Red Hat | Windows 10 Version 1709 for 32-bit Systems |
| Red Hat Enterprise Linux 9 | Red Hat | n/a |
| Red Hat Enterprise Linux 7 | Red Hat | < 1cf1f7e8cd47244fa947d357ef1f642d91e219a3 |
| Red Hat Enterprise Linux 8 | Red Hat | QCA6696 |