Security readout for executives and security teams
Plain-English summary
CVE-2023-53453 is a Linux kernel radeon graphics driver memory leak. When the radeon driver shuts down or unloads, memory allocated during ATOM BIOS parsing was not released. The provided sources do not show active exploitation, a CVSS score, or direct data compromise impact.
Executive priority
Treat as routine kernel hygiene unless your fleet heavily uses legacy Radeon hardware or frequently reloads graphics drivers. There is no provided evidence of active exploitation or data compromise, but kernel updates should still be folded into normal maintenance.
Technical view
The flaw is in drm/radeon ATOM BIOS handling. atom_parse allocates iio through atom_index_iio, but radeon_atombios_fini did not free it during driver shutdown. Kernel stable commits address this by freeing the allocation. Evidence points to a kmemleak on driver unload, not a documented privilege escalation path.
Likely exposure
Exposure is most likely on Linux systems using the radeon DRM driver with affected kernel versions and Radeon hardware. Systems not loading radeon, using unaffected fixed kernels, or using different graphics drivers are less likely to be exposed.
Exploitation context
The source bundle states KEV is false and provides no public exploitation evidence. The described trigger is driver shutdown or unload causing unreleased kernel memory. No exploit steps, weaponized technique, or attacker-controlled path is documented in the provided sources.
Researcher notes
The record lacks CVSS, CWE, and exploitability detail. The evidence is a Linux stable fix for a leaked 512-byte allocation tied to radeon ATOM BIOS parsing. Analysis should stay limited to resource leakage unless additional vendor or kernel discussion documents security impact.
Mitigation direction
- Identify systems loading the Linux radeon kernel module.
- Apply the relevant Linux stable kernel update containing the listed fix commits.
- Prioritize hosts where radeon unloads, reloads, or GPU drivers are operationally cycled.
- Check distribution vendor advisories for packaged kernel availability and backports.
- Avoid manual driver cycling as a mitigation substitute.
Validation and detection
- Confirm running kernel version against vendor-fixed packages or listed stable commits.
- Check whether the radeon module is loaded on candidate systems.
- Review kernel logs or kmemleak findings for radeon ATOM BIOS leaks.
- Validate patched systems no longer report this leak after controlled driver shutdown testing.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2023-53453 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/cb109cedbba11c33473e6780c256d8442a9e4460CVE reference, Linux
- https://git.kernel.org/stable/c/9cdb96b55651c92fc949cfd54124406c3c912b6bCVE reference, Linux
- https://git.kernel.org/stable/c/f9f55fc64928b5e30d78f861c5fc76db9e769ebbCVE reference, Linux
- https://git.kernel.org/stable/c/ce9e9d3dcbb0d1551ffd1a7f16e7c051f3ba4140CVE reference, Linux
- https://git.kernel.org/stable/c/cda2f7efbc2d857220dad32e315a54565b285c1cCVE reference, Linux
- https://git.kernel.org/stable/c/107b8b542bb9dab4cbdc3276c85fbdd7f6782313CVE reference, Linux
- https://git.kernel.org/stable/c/e2791f2f4d1d804e45fa91b14295c326b64c65f1CVE reference, Linux
- https://git.kernel.org/stable/c/4773fadedca918faec443daaca5e4ea1c0ced144CVE reference, Linux
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.