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.
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.
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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cwe · low confidence lookup
CWE-775: Exact CWE lookup
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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.