Security readout for executives and security teams
Plain-English summary
This Linux kernel issue can crash affected systems when memory allocation fails in the Zynq clock setup path. It is not described as data theft or privilege escalation; the documented impact is availability. The business risk is mainly outage risk on exposed affected Linux deployments, especially embedded or operational systems where local users can trigger vulnerable code paths.
Executive priority
Treat this as a moderate availability risk, not a broad remote compromise signal. Patch through normal kernel maintenance, but raise priority for embedded, production, or operational systems where a local crash could interrupt services.
Technical view
CVE-2024-27037 is a CWE-476 null pointer dereference in the Linux kernel clk zynq code. If kmalloc() returns null in zynq_clk_setup(), snprintf() may write through a null address. The fix replaces dynamic allocation with a stack variable. CVSS 3.1 is 5.5: local attack vector, low complexity, low privileges, no user interaction, high availability impact.
Likely exposure
Exposure appears limited to Linux systems running affected kernel builds that include the Zynq clock setup code. The source bundle does not provide CPEs or distribution package mappings, so organizations should map affected kernel versions and vendor backports carefully.
Exploitation context
The bundle does not report known active exploitation, and CISA KEV status is false. The CVSS vector requires local access with low privileges. Impact is denial of service through a kernel crash condition; no confidentiality or integrity impact is stated.
Researcher notes
Evidence supports a null pointer dereference caused by unchecked kmalloc failure in zynq_clk_setup(). The source bundle provides stable kernel commit references but no exploit report, CPE mapping, distribution advisory, or proof that specific downstream builds are affected.
Mitigation direction
- Upgrade to a Linux kernel build containing the referenced stable fixes.
- Check your Linux distribution or device vendor advisory for backported fixes.
- Prioritize embedded or operational Linux systems where downtime has business impact.
- Limit unnecessary local shell or user access on affected systems.
- Track kernel provenance for appliances and vendor-managed devices.
Validation and detection
- Inventory Linux kernel versions across servers, devices, and appliances.
- Identify systems using kernels mapped to the affected source bundle entries.
- Confirm whether vendor kernels include the referenced stable commits or equivalent backports.
- Review uptime-sensitive Zynq-based or embedded deployments first.
- Document systems that require vendor firmware or kernel updates.
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-2024-27037 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/01511ac7be8e45f80e637f6bf61af2d3d2dee9dbCVE reference, Linux
- https://git.kernel.org/stable/c/8c4889a9ea861d7be37463c10846eb75e1b49c9dCVE reference, Linux
- https://git.kernel.org/stable/c/0801c893fd48cdba66a3c8f44c3fe43cc67d3b85CVE reference, Linux
- https://git.kernel.org/stable/c/ca976c6a592f789700200069ef9052493c0b73d8CVE reference, Linux
- https://git.kernel.org/stable/c/58a946ab43501f2eba058d24d96af0ad1122475bCVE reference, Linux
- https://git.kernel.org/stable/c/7938e9ce39d6779d2f85d822cc930f73420e54a6CVE 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.