Service crash via missing NGAP information elements
Published Nov 15, 2024 · Updated Dec 3, 2024
Reachable assertions in Magma 1.8.0 and OAI EPC Federation 1.2.0 allow remote attackers to crash the AMF with crafted NGAP packets. The NGAP_FIND_PROTOCOLIE_BY_ID macro asserts when a decoded ASN.1 payload omits a requested information element instead of returning a null result for rejection. Reachability requires NGAP signaling access as a base station or equivalent core-facing peer; a trigger terminates the AMF and interrupts 5G service.
Summary
What happened
Reachable assertions in Magma 1.8.0 and OAI EPC Federation 1.2.0 allow remote attackers to crash the AMF with crafted NGAP packets. The NGAP_FIND_PROTOCOLIE_BY_ID macro asserts when a decoded ASN.1 payload omits a requested information element instead of returning a null result for rejection. Reachability requires NGAP signaling access as a base station or equivalent core-facing peer; a trigger terminates the AMF and interrupts 5G service.
The record
- CVE
- CVE-2024-24426
- Published
- Nov 15, 2024
- Updated
- Dec 3, 2024
- Vendor
- OpenAirInterface Software Alliance
- Product
- OAI EPC Federation
- Classifications
- CWE-78, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 15, 2024CVE publishedPublication date reported by the CVE source.
- Dec 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
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Is a vulnerable build present?
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- Affected versionversion=1.2.0
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What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
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Technologies
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Your stack
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