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CVE Record

CVE-2024-24444: Improper file descriptor handling for closed connections in OpenAirInterface CN5G AMF (oai-cn5g-amf) up to...

Improper file descriptor handling for closed connections in OpenAirInterface CN5G AMF (oai-cn5g-amf) up to v2.0.0 allows attackers to cause a Denial of Service (DoS) by repeatedly establishing SCTP connections with the N2 interface.

HighCVSS 7.5Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2024-24444 is a denial-of-service issue in OpenAirInterface CN5G AMF up to v2.0.0. An unauthenticated network attacker can repeatedly create SCTP connections to the N2 interface and exhaust availability. Business impact is disruption to 5G core AMF services, not data theft or tampering based on the published CVSS vector.

Executive priority

Prioritize for telecom, lab, or private 5G environments using OpenAirInterface CN5G AMF. The risk is service outage, so remediation urgency depends on whether the N2 interface is exposed beyond trusted network segments.

Technical view

The issue is improper file descriptor handling for closed connections, categorized as CWE-775. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, score 7.5. Public sources identify OpenAirInterface oai-cn5g-amf up to v2.0.0 and repeated SCTP connection activity against the N2 interface as the DoS condition.

Likely exposure

Most relevant to organizations running OpenAirInterface CN5G AMF, especially versions up to v2.0.0, with N2/SCTP reachable from untrusted or poorly controlled network paths. Exposure is lower where N2 is isolated to trusted RAN peers.

Exploitation context

The source bundle does not show CISA KEV listing or confirmed active exploitation. The vulnerability is network-reachable, unauthenticated, and low-complexity, so exposed deployments should treat it as operationally significant even without public exploitation confirmation.

Researcher notes

Evidence is limited to the CVE description, CVSS data, CWE-775 classification, and the RANsacked reference. The provided affected-product metadata is incomplete, but the description names OpenAirInterface CN5G AMF up to v2.0.0. No patch details are included in the provided sources.

Mitigation direction

  • Check OpenAirInterface guidance for fixed versions or configuration recommendations.
  • Restrict N2/SCTP access to trusted RAN peers and management-controlled networks.
  • Monitor AMF process file descriptors, SCTP sessions, and availability indicators.
  • Apply network rate limiting or connection controls where operationally safe.

Validation and detection

  • Inventory deployments of OpenAirInterface oai-cn5g-amf and record versions.
  • Confirm whether any deployment is version v2.0.0 or earlier.
  • Verify N2/SCTP is not reachable from untrusted networks.
  • Review AMF logs and resource metrics for abnormal connection churn.
Prepared
Confidence
medium
Sources
3

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.

cwe · low confidence lookup

CWE-775: 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 lookup
cve · low confidence lookup

CVE-2024-24444 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
7.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/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
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: yesTechnical 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
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2024-24444Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

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

CWE-775 · source CWE mapping

Missing Release of File Descriptor or Handle after Effective Lifetime

Missing Release of File Descriptor or Handle after Effective Lifetime represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.