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CVE Record

CVE-2024-35898: netfilter: nf_tables: Fix potential data-race in __nft_flowtable_type_get()

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix potential data-race in __nft_flowtable_type_get() nft_unregister_flowtable_type() within nf_flow_inet_module_exit() can concurrent with __nft_flowtable_type_get() within nf_tables_newflowtable(). And thhere is not any protection when iterate over nf_tables_flowtables list in __nft_flowtable_type_get(). Therefore, there is pertential data-race of nf_tables_flowtables list entry. Use list_for_each_entry_rcu() to iterate over nf_tables_flowtables list in __nft_flowtable_type_get(), and use rcu_read_lock() in the caller nft_flowtable_type_get() to protect the entire type query process.

MediumCVSS 5.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2024-35898 is a Linux kernel netfilter nf_tables race condition. A local, low-privileged user could potentially trigger a kernel availability failure. It is not described as remote code execution, data theft, or integrity compromise in the supplied sources.

Executive priority

Treat as a routine but time-bound kernel patching issue. Escalate priority for shared servers, appliances, or environments where untrusted local users can run code. No supplied source supports emergency response for active exploitation.

Technical view

The issue is an unprotected iteration over nf_tables_flowtables in __nft_flowtable_type_get(), concurrent with nft_unregister_flowtable_type(). The kernel fix changes traversal to RCU list iteration and protects the lookup through rcu_read_lock() in nft_flowtable_type_get(). CVSS is 5.5 with local access and low privileges required.

Likely exposure

Exposure is most relevant on Linux systems running affected kernel branches from the supplied version data, especially where nftables/netfilter flowtable functionality is present or available to local users. Debian LTS and Siemens advisories indicate downstream product impact existed.

Exploitation context

The bundle does not show CISA KEV listing or active exploitation. The CVSS vector requires local access and low privileges, with no user interaction. The stated impact is high availability loss, not confidentiality or integrity impact.

Researcher notes

Evidence supports a race in nf_tables flowtable type lookup and upstream stable fixes. The bundle does not provide exploit details, proof of exploitation, or precise downstream fixed versions for every distribution or product.

Mitigation direction

  • Apply vendor kernel updates that include the listed stable fixes.
  • Prioritize multi-user Linux hosts and exposed shared compute environments.
  • Check Debian LTS and product vendor advisories for packaged fixes.
  • For appliances, follow the vendor advisory rather than upstream-only assumptions.

Validation and detection

  • Inventory Linux kernel versions against vendor fixed package levels.
  • Confirm whether nftables/netfilter flowtable functionality is enabled or loadable.
  • Review downstream advisories for affected product firmware or distributions.
  • Verify updated kernels include the referenced nf_tables RCU fix.
Prepared
Confidence
high
Sources
12

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

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CVE-2024-35898 mapping review

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Vulnerability profileCVE Program record
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

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
3ADP providers
12Source 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
5.5CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

5.5Medium
CVSS 3.1 vector shape for CVE-2024-35898Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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
siemens-SADPADP container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux3b49e2e94e6ebb8b23d0955d9e898254455734f8, 3b49e2e94e6ebb8b23d0955d9e898254455734f8, 3b49e2e94e6ebb8b23d0955d9e898254455734f8, 3b49e2e94e6ebb8b23d0955d9e898254455734f8, 3b49e2e94e6ebb8b23d0955d9e898254455734f8, 3b49e2e94e6ebb8b23d0955d9e898254455734f8, 3b49e2e94e6ebb8b23d0955d9e898254455734f8, 3b49e2e94e6ebb8b23d0955d9e898254455734f8unaffected
LinuxLinux4.16, 0, 4.19.312, 5.4.274, 5.10.215, 5.15.154, 6.1.85, 6.6.26, 6.8.5, 6.9affected
Weakness

CWE details

No CWE listed

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