Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 6.5 |
| Fedoraproject | Fedora | 38 |
| Redhat | Enterprise Linux | 8.0 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2024:2394
- https://access.redhat.com/errata/RHSA-2024:2950
- https://access.redhat.com/errata/RHSA-2024:3138
- https://access.redhat.com/security/cve/CVE-2023-39198Issue TrackingThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2218332Issue TrackingPatchThird Party Advisory
- https://access.redhat.com/errata/RHSA-2024:2394
- https://access.redhat.com/errata/RHSA-2024:2950
- https://access.redhat.com/errata/RHSA-2024:3138
- https://access.redhat.com/security/cve/CVE-2023-39198Issue TrackingThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2218332Issue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
FAQ
What is CVE-2023-39198?
CVE-2023-39198 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 o...
How severe is CVE-2023-39198?
CVE-2023-39198 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-39198?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Fedoraproject Fedora, Redhat Enterprise Linux.