CVE-2023-39198
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Linux Kernel
PublishedNov 9, 2023
First seenNov 9, 2023
Weakness typeCWE-416Use after free
How to fix
Update
- linux linux_kernel6.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 6.5, 6.5 | 6.5 |
| fedoraproject fedora | 38 | — |
| redhat enterprise_linux | 8.0, 9.0 | — |
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