Security readout for executives and security teams
Plain-English summary
A Linux kernel light-sensor driver could leak uninitialized kernel memory to a local user through an IIO triggered buffer. The issue is local, not remote, but the reported impact includes high confidentiality and availability risk. It matters most where affected kernels expose the bh1745 Industrial I/O light sensor path to untrusted local users.
Executive priority
Prioritize routine-to-expedited kernel patching for systems with local multi-user exposure or embedded sensor hardware. This is not sourced as internet-exploitable, but local kernel information leaks can weaken broader defenses and should not remain unpatched on shared systems.
Technical view
The bh1745 IIO light driver pushed a stack-based scan structure to userspace without clearing fields for inactive channels. Because only active channels were populated, inactive fields could contain uninitialized data. The resolved change initializes the structure to zero before use, addressing CWE-908.
Likely exposure
Exposure appears limited to Linux systems running affected kernel versions with the bh1745 IIO light sensor driver and triggered buffers available. The source bundle identifies Linux 6.12, 6.12.10, 6.13, and a specific commit lineage, but range details are incomplete here.
Exploitation context
The CVSS vector requires local access and low privileges, with no user interaction. The provided sources do not show CISA KEV listing or active exploitation. Treat this as a local information leak risk, not evidence of remote compromise.
Researcher notes
Focus validation on the IIO bh1745 triggered-buffer path and kernel builds derived from the affected Linux versions or commit lineage. The public description supports an uninitialized-memory disclosure caused by inactive scan channels, with fixes represented by the two stable kernel commits.
Mitigation direction
- Check vendor kernel advisories for fixed packages covering CVE-2024-57909.
- Update affected Linux kernels to a version containing the referenced stable fixes.
- Restrict untrusted local access where vulnerable kernels cannot be updated quickly.
- Review whether bh1745 IIO light sensor support is enabled and exposed.
Validation and detection
- Inventory Linux kernel versions across laptops, servers, appliances, and embedded devices.
- Confirm whether the bh1745 driver is built, loaded, or available as a module.
- Map systems against vendor CVE-2024-57909 advisories and stable commit backports.
- Prioritize devices allowing local shell access by untrusted users or tenants.
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-908: 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-2024-57909 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
- High
- CVSS
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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:H/I:N/A:H1.85.2CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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/1cca2a666e099aa018e5ab385f0a6e01a3053629CVE reference, Linux
- https://git.kernel.org/stable/c/b62fbe3b8eedd3cf3c9ad0b7cb9f72c3f40815f0CVE 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.
Use of Uninitialized Resource
Use of Uninitialized Resource represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.