Security readout for executives and security teams
Plain-English summary
CVE-2024-42159 is a Linux kernel issue in the mpi3mr SCSI driver. The kernel now rejects num_phys values too large for the phy_mask field. Public sources do not provide impact detail, a CVSS score, or evidence of active exploitation.
Executive priority
Treat this as a targeted kernel maintenance item, not an emergency based on current evidence. Prioritize patching exposed storage servers during normal security update cycles, with faster handling for internet-facing or high-criticality infrastructure if mpi3mr is in use.
Technical view
The fix sanitizes num_phys before storing related information in mr_sas_port->phy_mask. The source description indicates oversized values should not be allowed because they exceed the field size. The affected component is Linux kernel scsi: mpi3mr; detailed exploitability, trigger conditions, and security impact are not described in the supplied sources.
Likely exposure
Exposure is most likely on Linux systems running affected kernel versions with the mpi3mr SCSI driver in use. Prioritize servers or storage platforms using compatible SAS/RAID hardware. Systems without this driver or hardware path are less likely to be exposed, but confirm against distribution kernel advisories.
Exploitation context
The supplied sources do not show active exploitation, and the CVE is not listed as KEV. No public exploit status, attacker requirements, or remote/local trigger path is provided in the bundle.
Researcher notes
The public record is sparse: no CVSS, CWE, detailed impact, or exploit prerequisites are included. Analysis should stay close to the upstream commits and distribution advisories. The key technical question is whether oversized num_phys can corrupt or misrepresent phy_mask state in reachable driver paths.
Mitigation direction
- Update affected Linux kernels using vendor or distribution security packages.
- Check Linux stable commits referenced by the CVE for fixed kernel branches.
- Review Debian LTS guidance if running Debian LTS kernels.
- Prioritize systems using mpi3mr-backed storage controllers.
- Avoid inventing compensating controls; follow kernel or distro guidance.
Validation and detection
- Inventory running Linux kernel versions across server and storage fleets.
- Identify hosts where the mpi3mr driver is present or loaded.
- Compare installed kernel packages with vendor fixed advisories.
- Confirm patched hosts booted into the updated kernel.
- Track exceptions where storage hardware requires delayed maintenance.
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-2024-42159 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.
SSVC decision data
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/b869ec89d2ee923d46608b76e54c006680c9b4dfCVE reference, Linux
- https://git.kernel.org/stable/c/586b41060113ae43032ec6c4a16d518cef5da6e0CVE reference, Linux
- https://git.kernel.org/stable/c/c8707901b53a48106d7501bdbd0350cefaefa4cfCVE reference, Linux
- https://git.kernel.org/stable/c/3668651def2c1622904e58b0280ee93121f2b10bCVE reference, Linux
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.htmlCVE reference, CVE
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.