LiveActive security incident?Get immediate response
CVE Record

CVE-2024-38542: RDMA/mana_ib: boundary check before installing cq callbacks

In the Linux kernel, the following vulnerability has been resolved: RDMA/mana_ib: boundary check before installing cq callbacks Add a boundary check inside mana_ib_install_cq_cb to prevent index overflow.

HighCVSS 7.1Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This Linux kernel flaw affects the RDMA/mana_ib driver. A missing bounds check could let a local, low-privileged user trigger out-of-bounds callback handling, risking data exposure or system disruption. It is high severity, but the provided sources do not show remote attackability or active exploitation.

Executive priority

Treat this as a high-priority kernel maintenance item for exposed Linux fleets, especially systems with local multi-user access. It is not currently supported by the provided sources as an internet-exploited emergency.

Technical view

CVE-2024-38542 is resolved by adding a boundary check in mana_ib_install_cq_cb before installing completion queue callbacks. CVSS 3.1 is 7.1 with local attack vector, low complexity, low privileges, no user interaction, high confidentiality impact, and high availability impact.

Likely exposure

Exposure is most likely on Linux systems running affected kernel builds where RDMA/mana_ib code is present and reachable by a local authenticated user. The source bundle does not provide CPEs, distribution package names, or product-specific deployment details.

Exploitation context

The CVE is not listed as KEV in the bundle, and no cited source states active exploitation. The CVSS vector indicates exploitation requires local access and low privileges, with no user interaction. Evidence is insufficient to assess exploit maturity.

Researcher notes

The public record describes a bounds-check fix, but does not include CWE mapping, CPEs, distribution package identifiers, or exploit details. Analysis should stay tied to kernel version, commit inclusion, and local privilege exposure.

Mitigation direction

  • Update to a Linux kernel containing the referenced stable fixes.
  • Check Linux distribution advisories for fixed kernel package versions.
  • Prioritize systems on affected 6.8.x, 6.9.x, and 6.10 paths.
  • Limit local access to affected hosts until patched.
  • Review vendor guidance before disabling RDMA-related functionality.

Validation and detection

  • Inventory Linux kernel versions across relevant systems.
  • Check whether running kernels include the referenced stable commits.
  • Identify hosts where RDMA/mana_ib functionality is present or required.
  • Confirm vendor kernel packages mark CVE-2024-38542 fixed.
  • Retest after patching to verify the fixed kernel is active.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · low confidence lookup

CVE-2024-38542 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
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

Official CVE source material

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.

1CVSS vectors
3Timeline events
2ADP providers
4Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
7.1CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H1.85.2CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

7.1High
CVSS 3.1 vector shape for CVE-2024-38542Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxcf9cc859d6ff37ce52c09dfbb169b9ee25595a3f, 2a31c5a7e0d87959a03e846523013c75f4395a91, 2a31c5a7e0d87959a03e846523013c75f4395a91unaffected
LinuxLinux6.9, 0, 6.8.12, 6.9.3, 6.10affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.