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CVE Record

CVE-2024-41017: jfs: don't walk off the end of ealist

In the Linux kernel, the following vulnerability has been resolved: jfs: don't walk off the end of ealist Add a check before visiting the members of ea to make sure each ea stays within the ealist.

HighCVSS 7.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A Linux JFS filesystem flaw can let local activity trigger unsafe processing of extended-attribute data beyond its valid boundary. The supplied CVSS assessment indicates potentially serious confidentiality, integrity, and availability impact. Risk is concentrated on systems running affected kernels where JFS is present and used.

Executive priority

Treat as a high-priority kernel maintenance issue where JFS and untrusted local access coincide. Patch those systems promptly through supported distribution channels. Systems without JFS exposure are lower priority, but teams should verify configuration rather than assume immunity. No active exploitation evidence is supplied.

Technical view

JFS extended-attribute list handling could visit an attribute entry without first confirming that the complete entry remained within the list. Linux stable fixes add that boundary check. The supplied CVSS 3.1 vector is 7.8: local access, low complexity, low privileges, no user interaction, unchanged scope, and high potential impact.

Likely exposure

Likely exposure is limited to Linux hosts running an affected kernel and using or processing JFS filesystems. Internet reachability alone does not create direct exposure because the supplied vector is local. The flattened version data is insufficient to determine every vulnerable distribution package or exact fixed version reliably.

Exploitation context

The supplied bundle marks this CVE as absent from KEV and provides no evidence of active exploitation. Exploitation is assessed as local, requiring low privileges and no user interaction. Public fix commits reveal the defective code area, but the sources supplied do not establish exploit availability or observed attacks.

Researcher notes

The core defect is missing bounds validation while traversing JFS extended-attribute entries. Upstream stable commits add a containment check before visiting each entry. The supplied record does not name a CWE, provide crash evidence, or preserve enough version-status detail for precise branch mapping; confirm ancestry and distribution backports against vendor advisories.

Mitigation direction

  • Install a vendor-supported kernel containing the applicable Linux stable fix.
  • Prioritize multi-user or untrusted-workload hosts that use JFS.
  • Consult distribution advisories to map kernel package versions accurately.
  • Restrict unnecessary local access while patching is pending.
  • Avoid mounting untrusted JFS media until remediation is confirmed.

Validation and detection

  • Inventory kernel and distribution package versions across Linux hosts.
  • Identify systems with JFS configured, mounted, or available for untrusted media.
  • Confirm the installed kernel includes the applicable upstream boundary-check fix.
  • Review distribution advisories rather than relying on upstream version numbers alone.
  • After updating, verify the running kernel changed and reboot completion is recorded.
Prepared
Confidence
high
Sources
5

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

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CVE-2024-41017 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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
11Source 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
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Linux

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2024-41017Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2unaffected
LinuxLinux2.6.12, 0, 4.19.319, 5.4.281, 5.10.223, 5.15.164, 6.1.102, 6.6.43, 6.9.12, 6.10.2, 6.11affected
Weakness

CWE details

No CWE listed

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