Security readout for executives and security teams
Plain-English summary
This Linux kernel flaw can crash affected systems when the bdisp media driver fails to handle a workqueue creation failure. The business impact is availability, not data theft or tampering, based on the CVSS vector. It requires local low-privileged access, so exposed multi-user or device environments deserve attention.
Executive priority
Treat this as a moderate availability risk. It is not currently cited as exploited and needs local low-privileged access, but kernel denial-of-service issues can still disrupt shared systems, appliances, or operational technology if affected drivers are present.
Technical view
CVE-2023-53289 is a CWE-476 NULL pointer dereference in the Linux kernel media bdisp driver. The fix adds a missing return-value check for create_workqueue. CVSS 3.1 is 5.5: local attack vector, low complexity, low privileges, no user interaction, and high availability impact only.
Likely exposure
Exposure is most likely on Linux systems running affected kernel versions or branches with the bdisp media driver present. The source lists Linux 4.2 and stable branch fixes including 4.14.315, 4.19.283, 5.4.243, 5.10.180, 5.15.111, 6.1.28, 6.2.15, 6.3.2, and 6.4.
Exploitation context
The provided bundle says KEV is false and gives no cited evidence of active exploitation. The CVSS vector indicates local, low-privileged exploitation with no user interaction. Expected impact is denial of service through kernel availability loss, not confidentiality or integrity compromise.
Researcher notes
The record is concise and evidence is limited to the Linux kernel fix description, CVSS data, affected version metadata, and stable commit references. Validate exposure by kernel branch, distribution backports, and driver presence rather than assuming all Linux deployments are practically affected.
Mitigation direction
- Update to a vendor kernel containing the linked Linux stable fixes.
- Prioritize systems where the bdisp media driver is present or loaded.
- Check distribution advisories for exact fixed package versions and backports.
- If patching is delayed, follow vendor guidance for temporary risk reduction.
Validation and detection
- Inventory Linux kernel versions across servers, endpoints, and appliances.
- Check whether the bdisp media driver is built, available, or loaded.
- Compare running kernels against vendor fixed versions or backported advisories.
- Confirm updates include one of the referenced stable kernel fixes.
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.
CWE-476: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-53289 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
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/fc1aeafdf6fb0a136c2257000f0d478ee62953feCVE reference, Linux
- https://git.kernel.org/stable/c/2bfbe3ad371ac5349302833198df14e442622cbcCVE reference, Linux
- https://git.kernel.org/stable/c/c6a315f0b14074ac89723f55b749a557dda0ae2bCVE reference, Linux
- https://git.kernel.org/stable/c/4362444dca02ab44ac844feda3cf6238ef953673CVE reference, Linux
- https://git.kernel.org/stable/c/519b0849401194745ea40f9e07513b870afc1b42CVE reference, Linux
- https://git.kernel.org/stable/c/c2e55481731b0e8c96f30f661e430aa884fbd354CVE reference, Linux
- https://git.kernel.org/stable/c/eef95a2745cb91559bb03aa111c228fe38deaf64CVE reference, Linux
- https://git.kernel.org/stable/c/0d09ce05724cfb3f5c5136893bec95305c641875CVE reference, Linux
- https://git.kernel.org/stable/c/2371adeab717d8fe32144a84f3491a03c5838cfbCVE 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.
NULL Pointer Dereference
NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.